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compile err

SerialWizard.pro 是不是没更新,里面的FrameInfoDialog.cpp和FrameInfoDialog.h没用到了,但是没删除

无法解析的外部符号

你好,
我下载了你的工程打开编译,提示无法解析的外部符号,如下图:
图片
请问还有什么需要引入的吗?

必须有一个返回值

图片

qint64 MainWindow::writeData(const QByteArray &data) {
if (!data.isEmpty() && isReadWriterConnected()) {
auto count = _readWriter->write(data);
displaySentData(data);
sendCount += count;
emit writeBytesChanged(sendCount);
}
}
这里提示该方法必须有一个返回值,请解释一下呗,谢谢

No rule to make target 'FrameInfoDialog.cpp

你好,我使用的qt creator编译工程报错:我在工程里面也没有找见FrameInfoDialog.cpp这个文件。
error: No rule to make target 'FrameInfoDialog.cpp', needed by 'debug/FrameInfoDialog.o'. Stop.
In function 'QString convertSimplified(DataProcessDialog*, const QString&)':

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