Currently you have no contract instances to interact with ошибка

In section «1. approve», approve the LP token for the router by entering

1. spender (address): enter the contract address of the LP token you’re trying to interact with
2. value (uint256): -1

1. Switch to Read Contract.
2. In 5. balanceOf, input your wallet address and hit Query.
3. Keep track of the number that’s exported. It shows your balance within the LP in the uint256 format, which you’ll need in the next step.

Add or Remove Liquidity

1. Select Write Contract and Connect to Web3 as above.
2. Find addLiquidity or removeLiquidity (whichever one you’re trying to do)
3. Enter the token addresses of both of the tokens in the LP.
4. In liquidity (uint256), enter the uint256 number which you got from «balanceOf» above.
5. Set a low amountAMin or amountBMin: try 1 for both.
6. Add your wallet address in to (address).
7. Deadline must be an epoch time greater than the time the tx is executed.

This can cause very high slippage, and can cause the user to lose some funds if frontrun

The transaction cannot succeed due to error: PancakeRouter: EXPIRED. This is probably an issue with one of the tokens you are swapping.

Try again, but confirm (sign and broadcast) the transaction as soon as you generate it.

This happened because you started making a transaction, but you didn’t sign and broadcast it until it was past the deadline. That means you didn’t hit «Confirm» quickly enough.

The transaction cannot succeed due to error: Pancake: K. This is probably an issue with one of the tokens you are swapping.

Try modifying the amount on “To” field. Therefore putting «(estimated)» symbol on “From”. Then initiate the swap immediately.

This usually happen when you are trying to swap a token with its own fee.

The transaction cannot succeed due to error: execution reverted: Pancake: TRANSFER_FAILED.

Make sure you have 30% more tokens in your wallet than you intend to trade, or try to trade a lower amount. If you want to sell the maximum possible, try 70% or 69% instead of 100%.
Caused by the design of Restorative Rebase tokens like tDoge or tBTC.
Understand how restorative rebase tokens work.

Another possible cause of this issue is the malicious token issuer just suspended the trading for their token. Or they made selling action only possible for selected wallet addresses. Please always do your own research to avoid any potential fraud. If the token you are trying to swap but failed with this error code is coming from an airdrop, that is most likely a scam. Please do not perform any token approval or follow any links, your fund may be at risk if you try to do so.

Transaction cannot succeed

Try trading a smaller amount, or increase slippage tolerance via the settings icon and try again. This is caused by low liquidity.

Price Impact too High

Try trading a smaller amount, or increase slippage tolerance via the settings icon and try again. This is caused by low liquidity.

This transaction would fail. Please contact support

If you got this error while removing liquidity from a BNB pair:

Please select «Receive WBNB» and retry.

If you got this error while trying to swap:

Please contact the project team of the token you’re trying to swap. **** This issue must be resolved by the project team.

This issue (while swapping) is caused by tokens which have hard-coded the V1 PancakeSwap router into their contract.

While this practice is ill-advised at best, the reason for these projects having done this appears to be due to their tokenomics, in which each purchase sends a % of the token to LPs.

The projects affected will likely not work with the V2 router: they will most likely need to create new versions of their tokens pointing to our new router address, and migrate any existing token holders to their new token.

We recommend that any projects which created such tokens should also make efforts to prevent their users from adding them to V2 LP.

Cannot read property ‘toHexString’ of undefined

«Unknown error: «Cannot read property ‘toHexString’ of undefined»

When trying to swap tokens, the transaction fails and this error message is displayed. This error has been reported on mobile devices using Trust Wallet.

1. Attempt the transaction again with increased slippage allowance.
2. If 1. does not resolve your problem, consider using another wallet such as SafePal for your transaction.

This usually happens when trading tokens with insufficient slippage allowance on Trust Wallet.

The exact details of the problem are still being investigated.

Execution reverted: TransferHelper: TRANSFER_FROM_FAILED.

The transaction cannot succeed due to error: execution reverted: TransferHelper: TRANSFER_FROM_FAILED.

When trying to swap tokens, the transaction fails and this error message is displayed. This error has been reported across platforms.

1. Check to make sure you have sufficient funds available.
2. Ensure you have given the contract allowance to spend the amount of funds you’re attempting to trade with.

This error happens when trading tokens with insufficient allowance, or when a wallet has insufficient funds.
If you’re trading tokens with Restorative Rebase like tau assets tDoge or tBTC, make sure you understand how they work first with this guide to Rebase tokens.

Issues with Syrup Pools

BEP20: burn amount exceeds balance

Fail with error ‘BEP20: burn amount exceeds balance’

You don’t have enough SYRUP in your wallet to unstake from the CAKE-CAKE pool.

Get at least as much SYRUP as the amount of CAKE that you’re trying to unstake.

1. Buy SYRUP on the exchange. If you want to unstake 100 CAKE, you need at least 100 SYRUP.
2. Try unstaking again.

If that still fails, you can perform an “emergencyWithdraw” from the contract directly to unstake your staked tokens.

1. Go to: https://bscscan.com/address/0x73feaa1eE314F8c655E354234017bE2193C9E24E#writeContract
2. Click “Connect to Web3” and connect your wallet.
3. In section “4. emergencyWithdraw”, enter «0» and click “Write”.

This will unstake your staked tokens and lose any uncollected CAKE yield.

This will lose any yield that you haven’t harvested yet.

To stop this happening again, don’t sell your SYRUP. You still need it to unstake from the “Stake CAKE Earn CAKE” pool.

This error has happened because you have sold or transferred SYRUP tokens. SYRUP is minted in a 1:1 ratio to CAKE when you stake in the CAKE-CAKE Syrup Pool. SYRUP must be burned at a 1:1 ratio to CAKE when calling leaveStaking (unstaking your CAKE from the pool), so if you don’t have enough, you can’t unstake from the pool.

Out of Gas error

Warning! Error encountered during contract execution [out of gas]

You have set a low gas limit when trying to make a transaction.

Try manually increasing the gas limit (not gas price!) in your wallet before signing the transaction.

A limit of 200000 is usually enough.

The above example is from Metamask; check your wallet’s documentation if you aren’t sure how to adjust the gas limit.

Basically, your wallet (Metamask, Trust Wallet, etc.) can’t finish what it’s trying to do.

Your wallet estimates that the gas limit is too low, so the function call runs out of gas before the function call is finished.

BEP20: transfer amount exceeds allowance

Fail with error ‘BEP20: transfer amount exceeds allowance’

1. Use Unrekt.net to revoke approval for the smart contract you’re trying to interact with
2. Approve the contract again, without setting a limit on spend allowance
3. Try interacting with the contract again.

This happens when you set a limit on your spend allowance when you first approved the contract, then try to swap more than the limit.

BEP20: transfer amount exceeds balance

Fail with error ‘BEP20: transfer amount exceeds balance’

You’re probably trying to unstake from a Syrup Pool with low rewards in it. Solution below.

If not, you may be trying to send tokens that you don’t have in your wallet (for example, trying to send a token that is already assigned to a pending transaction). In this case, just make sure you have the tokens you’re trying to use.

Firstly, let the team know which pool you’re trying to unstake from, so they can top up the rewards. If you’re in a hurry to unstake and you don’t mind losing your pending yield, try an emergencyWithdraw:

You can perform an “emergencyWithdraw” from the contract directly to unstake your staked tokens.

1. Find the contract address of the Syrup Pool you’re trying to unstake from. You can find it in your wallet’s transaction log.
2. Go to https://bscscan.com/ and in the search bar, enter the contract address.
3. Select Write Contract.
4. Click “Connect to Web3” and connect your wallet.
5. In section “3. emergencyWithdraw”, and click “Write”.

This will unstake your staked tokens and lose any uncollected yield.

This will lose any yield that you haven’t harvested yet.

This error tends to appear when you’re trying to unstake from an old Syrup Pool, but there aren’t enough rewards in the pool left for you to harvest when withdrawing. This causes the transaction to fail.

Issues with Prediction

Other issues

Provider Error
No provider was found

This happens when you try to connect via a browser extension like MetaMask or Binance Chain Wallet, but you haven’t installed the extension.

Unsupported Chain ID

Switch your chain to BNB Smart Chain. Check your wallet’s documentation for a guide if you need help.

Already processing eth_requestAccounts. Please wait.

Make sure you are signed in to your wallet app and it’s connected to BNB Smart Chain.

Issues buying SAFEMOON and similar tokens

To trade SAFEMOON, you must click on the settings icon and set your slippage tolerance to 12% or more.
This is because SafeMoon taxes a 10% fee on each transaction:

• 5% fee = redistributed to all existing holders
• 5% fee = used to add liquidity

This is also why you might not receive as much of the token as you expect when you purchase.
Read more on How to Buy Safe Moon.

Internal JSON-RPC errors

«MetaMask — RPC Error: Internal JSON-RPC error. estimateGas failed removeLiquidityETHWithPermitSupportingFeeOnTransferTokens estimateGas failed removeLiquidityETHWithPermit «

Happens when trying to remove liquidity on some tokens via Metamask. Root cause is still unknown. Try using an alternative wallet.

You don’t have enough BNB to pay for the transaction fees. You need more BEP-20 network BNB in your wallet.

Increase the gas limit for the transaction in your wallet. Check your wallet’s documentation to learn how to increase gas limit.

Cause unclear. Try these steps before trying again:

1. Increase gas limit
2. Increase slippage
3. Clear cache

Issues with Profile

Oops! We couldn’t find any Pancake Collectibles in your wallet.

We’re investigating the logic behind this issue. Meanwhile please try the workaround.

1. Go to “Collectible” page, then come back to profile page.
   If you can’t find the link, go to https://pancakeswap.finance/collectibles directly.
2. Retry profile creation.

• Clear the cache and retry.
• Retry on different browser.
• Retry on different wallet apps.
• Retry on the different network (switch between Wi-Fi and cellular)

Checking username keeps spinning

There are two possible causes.

1. You have multiple wallets installed on the browser.
2. Network issue.

Root cause: You have multiple wallets installed on the browser.

It may make a conflict between wallets. This is out of PancakeSwap’s control and we can do nothing.

1. Have only single wallet installed on browser, remove the others.
2. Reconnect the wallet and retry setting username again.

Root cause: Network is unstable.

You have to retry.

1. Delete whatever has been entered in the text field completely.
2. Re-type username, then please wait for seconds.
3. If it doesn’t work, reload the page and retry again.

You can’t perform that action at this time.

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session.

Не удалось выполнить транзакцию: «INSUFFICIENT_OUTPUT_AMOUNT» Обмен токенов | Исправление ошибки

Пытаетесь поменять BNB на свой любимый токен BEP20 с помощью Pancake Swap, но всегда получаете следующее сообщение об ошибке при нажатии кнопки обмена?

«The transaction cannot succeed due to error: PancakeRouter: INSUFFICIENT_OUTPUT_AMOUNT. This is probably an issue with one of the tokens you are swapping.»

Похоже, многие люди сталкиваются с этой ошибкой при попытке поменять BNB на SAFEMOON. Не только Safe Moon, но и каждая отдельная транзакция, которую вы пытаетесь выполнить с любой парой, будет выдавать вам эту ошибку.

Это базовое руководство, в котором объясняется, как исправить это всплывающее окно ошибки на pancake swap finance.

Transaction cannot succeed — это распространенная ошибка

Это не проблема с токеном Pancake Swap DEX или токеном Safe Moon. Эта ошибка может возникнуть, когда вы меняете токены и используете любой децентрализованный торговый протокол.

Не только Pancake Swap, но и одна из распространенных ошибок, с которыми сталкиваются пользователи Uniswap при обмене токенов ERC20 на Uniswap.

«The transaction cannot succeed due to error: UniswapV2Router: EXPIRED. This is probably an issue with one of the tokens you are swapping.»

«The transaction cannot succeed due to error: TransferHelper: TRANSFER_FROM_FAILED. This is probably an issue with one of the tokens you are swapping.»

Пока вы не исправите эту ошибку; платформа не позволит вам обменивать токены, поэтому вы не можете покупать или продавать монеты или токены. Что ж, исправить ее очень просто.

На странице обмена Uniswap щелкните значок шестеренки настроек в правом верхнем углу. Нажмите «Toggle Expert Mode» («Переключить экспертный режим»), затем включите режим экспорта (export mode), и нажмите на «confirm» («подтвердить») во всплывающем диалоговом окне.

Снова нажмите на значок шестеренки и немного увеличьте. «slippage tolerance». Продолжайте увеличивать его, пока транзакция не завершится успешно.

Также убедитесь, что у вас достаточно ETH на Uniswap, чтобы покрыть транзакционную комиссию.

То же самое исправление и для Pancake swap. Все, что вам нужно сделать, это увеличить slippage, нажав на значок шестеренки. Попробуйте 2-3%.

Если это не сработает, продолжайте постепенно увеличивать. Чтобы обменивать токены, такие как Safe Moon, вам нужно установить slippage на 11%.

На Pancakeswap.finance убедитесь, что у вас достаточно BNB для покрытия платы за газ.

Следуйте пошаговым инструкциям ниже, чтобы исправить эту ошибку.

Ошибка устранения неполадок: PancakeRouter: INSUFFICIENT_OUTPUT_AMOUNT

Почему появляется ошибка INSUFFICIENT OUTPUT AMOUNT?

INSUFFICIENT_OUTPUT_AMOUNT — это ошибка, с которой вы столкнетесь при попытке торговать токенами с низкой ликвидностью.

Вероятно, это может быть токен с небольшой капитализацией, и в пуле ликвидности может не хватить токенов для обмена. Или это может быть мошеннический токен, который не может быть продан.

В случае с SAFEMOON это не мошеннический токен, и ошибка возникает не потому, что в пуле ликвидности недостаточно токенов, а потому, что ваш допуск к slippage слишком низок.

Вот как это исправить.

Повышение устойчивости к Slippage:

Чтобы поменять SAFEMOON, slippage должно быть не менее 11%, и вот как его увеличить.

1. Нажмите на значок настроек на странице биржи / ликвидности
2. Теперь постепенно увеличивайте slippage. Для Safe Moon это должно быть 11%. Также убедитесь, что крайний срок транзакции в окне настроек установлен на 20 минут.

После изменения этих настроек нажмите «swap». Немного понизьте BNB, чтобы покрыть комиссии, или просто нажмите на кнопку max.

Примечание. Убедитесь, что у вас достаточно BNB для оплаты комиссии, иначе ваша транзакция не пройдет. Установите slippage на 11% и продолжайте попытки, а если это не поможет, попробуйте 12%. После нескольких попыток ваша транзакция должна наконец пройти.

Установив slippage на 11%, вы получите следующее предупреждение:

«Your transaction may be frontrun.»

Здесь не о чем беспокоиться.

Увеличивая slippage, вы в значительной степени размещаете рыночный ордер.

Процент Slippage — это сумма, превышающая цену, которую вы платите от того, что вам было указано. В результате, когда вы совершаете покупку / продажу, вы получаете меньше токенов, чем должны были получить изначально (чем то, что Вы видели на экране).

Таким образом, кроме увеличения Slippage, вы не можете приобрести safe moon с помощью BNB. В настоящее время токены, такие как SafeMoon, пока недоступны на CEX, таких как Binance.

Все еще возникают проблемы при попытке обменять SAFEMOON или любые другие токены на Pancake Swap?

Другие решения

Повышение устойчивости к Slippage и крайнего срока транзакции должно исправить такие распространенные ошибки транзакций, как:

«INSUFFICIENT_OUTPUT_AMOUNT , INSUFFICIENT_A_AMOUNT, INSUFFICIENT_B_AMOUNTиPancakeRouter: EXPIRED»

Даже после изменения, если проблема не устранена, попробуйте следующее решение.

Некоторые пользователи сообщают, что перезагрузка компьютера и сброс настроек Интернета устранили проблему.

Если вы пытаетесь выйти из Ledger, то отключите устройство, подключите его обратно и повторите попытку. Наконец, на ПК или мобильном устройстве проверьте настройки даты и времени.

Смотрите видео с нашего YouTube канала: Кошелек Ledger Nano S, стоит ли покупать, первые впечатления.

I’m trying to write my first smart contract by copying code from a video online. The instructor could «Deploy» but for some reason I’m getting this error message even though the code is exactly the same.

Dharman♦

29.2k21 gold badges79 silver badges131 bronze badges

asked Jul 14, 2020 at 3:23

1

It seems you have not compiled your contract. You can simply compile by clicking compile button available. Please refer to the image
Compile button Snap.

ouflak

2,43810 gold badges43 silver badges49 bronze badges

answered Jan 25, 2022 at 9:15

1

The area where this message is shown is where deployed contracts are listed. This is simply stating that you haven’t yet deployed a contract.

In the contracts drop down, I see you do not have a contract selected. You’ll need to select a compiled contract to deploy. If there aren’t any, its because you haven’t yet compiled one. You’ll need to select a .sol file in the compiler panel, and run the compiler. Once complete, you should see the compiled contract in the drop down.

Once you hit deploy, assuming the selected contract deploys successfully, you’ll see the contract listed here.

answered Sep 28, 2021 at 15:01

tintyethantintyethan

1,7303 gold badges20 silver badges43 bronze badges

0

For me simply refreshing the page solved this issue.

answered Jan 17, 2022 at 9:19

YarYar

6,79011 gold badges46 silver badges66 bronze badges

this problem occurs when you don’t compile the code. You need to compile it first and then the deploy button will appear

answered Nov 22, 2020 at 22:46

I can confirm if all else fails, refresh the page. I ran into the same issue and after refreshing the page everything was working correctly again. It was the first time I had ran into this issue, so I too was a little puzzled. I usually start a new browser session so it was not an issue before.

answered Feb 14, 2022 at 4:48

If you use Remix plugin on VsCode and encounter «Currently you have no contract instances to interact with» problem, correct your solidity version which version you wrote and compile it again.

answered Dec 29, 2022 at 9:16

Refreshing solves the issue after you have compiled.

answered Sep 15, 2022 at 12:20

0

I get an error that says no contract instances to interact with when trying to deploy my

pragma solidity ^0.8.3 

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";

contract Gaia {
    
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;
    uint public totalSupply = 100000000 * 10 ** 18;
    string public name = "Gaia coin";
    string public symbol = "GAIA";
    uint public decimals = 18
    
    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);
    constructor() {
        balances[msg.sender] = totalSupply;
    }
    
    function balanceOf(address owner) public view returns(uint) {
        return balances[owner];
    }
    
    function transfer(address to, uint value) public returns(bool) {
        require(balanceOf(msg.sender)>= value, 'balance too low')
        balances[to] += value;
        balances[msg.sender] -= value;
        emit Transfer(msg.sender, to, value);
        return true;
    }
    function transferFrom(address from, address to, uint value) public returns(bool) {
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[to] +=(value);
        balances[from].sub(value);
        emit Transfer(from, to, value);
        return true
    
    function approve(address spender, uint value) public returns(bool) {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }
    
    function charity(address from, address(Oxd4Af23dF6A52ce4eBE511dC09E8E7d102e62e918) to, uint value) public returns(bool) {
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[to] +=(value * 0.75);
        balances[from].sub(value * 0.75);
        emit Transfer(from, to, value * 0.75);
        return true
    }
}

Steve4449

Posts: 1

Joined: Mon Jan 20, 2020 4:01 pm

Currently no contracts available…

I’ve been playing for about 130 hours on the current save game and I keep running into the same problem that I’ve had on my previous save games. It’s mid-day and I’m standing around with nothing to do. There are however plenty of jobs to do there just are no contracts for them. So, I enjoy listening to the birds. Or if I’m impatient I’ll quit and restart the game, but this only works to a certain degree. Can someone please explain the issuance of contracts for me? I am not sure if I am experiencing a game malfunction or if this is the way it is meant to be played.

I have installed Multiple Missions from the in-game Mod menu, and it hasn’t solved the problem although I can now take multiple contracts which makes the game more realistic.

I also have installed Seasons which may have affected contracts in some way. Also, Guidance Steering. I’m hoping this info helps

---

L2K Perma

Posts: 316

Joined: Mon Jul 16, 2018 5:00 am

Re: Currently no contracts available…

Post

by L2K Perma » Tue Jan 21, 2020 5:57 pm

If you’re playing on a mod map, it’s likely the author of the map does not have the missions set up for the map.

While seasons does slightly change missions, it doesn’t remove them, rather, they get spread out throughout the year so that even during your down time you should still have something to do.

If you’ve been doing missions then it’s likely that you’ve just done all that is available at that time.

FS13 — Xbox 360
FS15 — Xbox 360/Xbox One
FS17 — Xbox One
FS19 — PC

PC specs: i5-8600k, M22 Kraken AIO cooler, 16GB ddr4 ram, RTX 2070 Super, 256 GB SSD, 1 TB HDD

---

humbe

Posts: 1364

Joined: Sat Jan 18, 2020 9:33 pm

Re: Currently no contracts available…

Post

by humbe » Tue Jan 21, 2020 6:23 pm

Im playing seasons and it seems I have to wait until next day to get more contracts, but would be interesting to know if they may come another time and if it matters how many you have already completed or cancelled. Dont want to leave missions I dont want to do in list if it stops others from appearing.

Also, on Greenwich Valley map I seem to get missions on the same fields. If I buy any of those will I start getting contract on another or will I loose out on missions?

---

El_Nino_NL

Posts: 113

Joined: Mon Jul 09, 2018 3:15 pm

Re: Currently no contracts available…

Post

by El_Nino_NL » Tue Jan 21, 2020 7:36 pm

humbe wrote: ↑

Tue Jan 21, 2020 6:23 pm

Im playing seasons and it seems I have to wait until next day to get more contracts, but would be interesting to know if they may come another time and if it matters how many you have already completed or cancelled. Dont want to leave missions I don’t want to do in list if it stops others from appearing.

Also, on Greenwich Valley map I seem to get missions on the same fields. If I buy any of those will I start getting contract on another or will I loose out on missions?

Greenwhich Valley had issues with field boundaries, the only reason there are hardly any missions.
There are some missions, on some straight field, but the irregular shaped fields do not have the correct field boundaries and therefore no missions.

---

TheSpaceDad

Posts: 13

Joined: Tue Sep 03, 2019 1:17 pm

Re: Currently no contracts available…

Post

by TheSpaceDad » Tue Jan 21, 2020 7:55 pm

A lot of maps claim to have transportation missions (Greenwich included) but a quick check in both Giants Editor and the config file that is provided proves that to be otherwise.

There seems to be a belief that simply copying the transportation mission config file from either Ravenport or Felsbrunn will allow transport missions to take place, but in actual fact there needs to be nodes created in the map and then referenced and set up correctly in the config file. A quick check of Ravenport or Felsbrunn in the Giants Editor shows how this is done.

The new Charwell map is another example of this, where the map author has created the nodes but not configured this properly in the config file.

For Greenwich I simply created a few points in the map and then set up a config file so I could do transport missions on that map. However to fix the field definitions on that map would be a lot of work and I don’t do that many contracts so I left that bit!

PC Specs: i7 4790k 4.0 GHz CPU // 32GB RAM // GTX 1080Ti GPU // 500GB Samsung 850 EVO SSD

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SJ_Sathanas

Posts: 578

Joined: Thu Jan 10, 2019 7:02 am

Re: Currently no contracts available…

Post

by SJ_Sathanas » Tue Jan 21, 2020 10:21 pm

As said it depends on the Map. Also try saving and reloading- that’ll «spawn» some missions.

---

cwattyeso

Posts: 1740

Joined: Tue Nov 27, 2018 3:58 pm

Location: United Kingdom

Contact:

Re: Currently no contracts available…

Post

by cwattyeso » Thu Jan 23, 2020 9:00 pm

I’ve not downloaded and looked at Charwell yet myself, but I wonder if that has the same issue as the Author’s last map This is Ireland, where there are few contracts on fields, because it suffers the same problem as Greenwich Valley and a few other maps released on the ModHub that the Author’s haven’t setup the correct field definitions for all the irregular shaped fields and have just skipped them completely because placing all the parallelograms needed to define those fields takes a lot of time and patience.

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I get an error that says no contract instances to interact with when trying to deploy my

pragma solidity ^0.8.3 

import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/ERC20.sol";

contract Gaia {
    
    mapping(address => uint) public balances;
    mapping(address => mapping(address => uint)) public allowance;
    uint public totalSupply = 100000000 * 10 ** 18;
    string public name = "Gaia coin";
    string public symbol = "GAIA";
    uint public decimals = 18
    
    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);
    constructor() {
        balances[msg.sender] = totalSupply;
    }
    
    function balanceOf(address owner) public view returns(uint) {
        return balances[owner];
    }
    
    function transfer(address to, uint value) public returns(bool) {
        require(balanceOf(msg.sender)>= value, 'balance too low')
        balances[to] += value;
        balances[msg.sender] -= value;
        emit Transfer(msg.sender, to, value);
        return true;
    }
    function transferFrom(address from, address to, uint value) public returns(bool) {
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[to] +=(value);
        balances[from].sub(value);
        emit Transfer(from, to, value);
        return true
    
    function approve(address spender, uint value) public returns(bool) {
        allowance[msg.sender][spender] = value;
        emit Approval(msg.sender, spender, value);
        return true;
    }
    
    function charity(address from, address(Oxd4Af23dF6A52ce4eBE511dC09E8E7d102e62e918) to, uint value) public returns(bool) {
        require(balanceOf(from) >= value, 'balance too low');
        require(allowance[from][msg.sender] >= value, 'allowance too low');
        balances[to] +=(value * 0.75);
        balances[from].sub(value * 0.75);
        emit Transfer(from, to, value * 0.75);
        return true
    }
}