Ошибка unicodeutf8 is not a member of qapplication

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#include <QMainWindow>
#include <QApplication>
#include <QLabel>
#include <QPushButton>
#include <QVBoxLayout>
#include <QWidget>
#include <QInputDialog>

class Form1 : public QMainWindow
{
    Q_OBJECT

public:
    explicit Form1(QWidget *parent = 0) : QMainWindow(parent) // Stuff to draw the window
    {
        centralWidget  = new QWidget(this);
        verticalLayout = new QVBoxLayout(centralWidget);
        Button1        = new QPushButton(centralWidget);
        label1         = new QLabel(centralWidget);

        Button1->setObjectName(QString::fromUtf8("Button1"));
        Button1->setText(QApplication::translate("Form1", "Push me", 0, QApplication::UnicodeUTF8));

        verticalLayout->addWidget(Button1);
        verticalLayout->addWidget(label1);

        this->setCentralWidget(centralWidget);

        QMetaObject::connectSlotsByName(this);
    }

private slots:
    void on_Button1_clicked()
    {
        Numberhidden = rand() % 100 + 1;
        Numberguess  = QInputDialog::getInteger(this, "", "Please enter your first guess", 50, 1, 100);

        while (Numberhidden != Numberguess && mycounter < 5)
        {
            if (Numberhidden > Numberguess)
                Numberguess = QInputDialog::getInteger(this, "", "Try a higher number, and enter your new guess", 0, 1, 100);
            else if (Numberhidden < Numberguess)
                Numberguess = QInputDialog::getInteger(this, "", "Try a lower number, and enter your new guess", 0, 1, 100);

            ++mycounter;
        }

        if (Numberhidden == Numberguess)
            label1->setText("You guessed it correct");
        else
            label1->setText("You have run out of opportunites");
    }

private:
    QWidget*     centralWidget;
    QVBoxLayout* verticalLayout;
    QPushButton* Button1;
    QLabel*      label1;

    int Numberhidden;
    int Numberguess;
    int mycounter = 0;
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Form1 w;
    w.show();
    
    return a.exec();
}

При запуске скрипта выдается ошибка:

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc7 in position 0: 
    invalid continuation byte

Все работало на винде, но сейчас перешел на убунту и словил ошибку. IDE PyCharm.

#!/usr/bin/python
# -*- coding: utf8 -*-

import vk
import time

token = "8723b7"
session = vk.Session(access_token=token)
api = vk.api.API(session, v='5.80', land='ru')
adres2 = '//home//sergey//Рабочий стол//Alfa-Forex MetaTrader 
4//MQL4//Files//text.txt' #открытая группа

position2 = 0 #открытая группа

with open(adres2) as fh2:
    while True:
        fh2.seek(position2) #открытая группа

        data2 = fh2.read() #открытая группа

        position2 = fh2.tell() #открытая группа

        if data2:
            api.wall.post(owner_id='-11', message=data2)# открытая 
группа

        time.sleep(3)

ошибка:

/usr/bin/python3.6 /home/sergey/bin/Signal.py
Traceback (most recent call last):
 File "/home/sergey/bin/Signal.py", line 39, in <module>
   data2 = fh2.read() #открытая группа
 File "/usr/lib/python3.6/codecs.py", line 321, in decode
  (result, consumed) = self._buffer_decode(data, self.errors, final)
 UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc7 in position 
 0: invalid continuation byte

Объясните как это исправить?

QCoreApplication::UnicodeUTF8 is deprecated

This enum type used to define the 8-bit encoding of character string arguments to translate(). This enum is now obsolete and UTF-8 will be used in all cases. So remove all instances of QCoreApplication::UnicodeUTF8. For example:

Href_Gui->setWindowTitle(QApplication::translate("Href_Gui", "Url / www", 0, QApplication::UnicodeUTF8));
label->setText(QApplication::translate("Href_Gui", "Text:", 0, QApplication::UnicodeUTF8));
label_2->setText(QApplication::translate("Href_Gui", "Url:", 0, QApplication::UnicodeUTF8));
label_3->setText(QApplication::translate("Href_Gui", "Target / Name:", 0, QApplication::UnicodeUTF8));

to

Href_Gui->setWindowTitle(QApplication::translate("Href_Gui", "Url / www", 0));
label->setText(QApplication::translate("Href_Gui", "Text:", 0));
label_2->setText(QApplication::translate("Href_Gui", "Url:", 0));
label_3->setText(QApplication::translate("Href_Gui", "Target / Name:", 0));

This solved my problem