@RekTekk249 said in Tons of error for no obvious reason: Two hours ago, everything was going well, until I realised I needed the same instance of my helper class in my MainWindow than in my LoginWindow. If you would have posted the whole file, esp. showing the parts you've changed, it would have saved a lot of troubleshooting ;-) It's also a debugging thing... If you made changes and suddenly nothing works anymore, revert the changes and try to figure out why it happened.

@Aditya-Gour said in Working TCP client not connecting after upgrading to Qt creator 4.14.0 (based on Qt 5.15.2): before reading this reply i debugged using : Where did you put these lines? "My updated code I am attaching for reference" - what is updated there? Please connect a slot to https://doc.qt.io/qt-5/qabstractsocket.html#errorOccurred before calling connectToHost and print https://doc.qt.io/qt-5/qiodevice.html#errorString there.

It seems like this was a packaging error on Arch Linux, if you are facing this issue, install assimp

@rakader Guten Morgen. Kannst Du mal Creator mit dem Parameter -tcs starten? Wenn es dann geht, liegt es an den Einstellungen. Welches OS hast Du? Grüße