Qt Creator 4.12.0 (Community) not working

atharva.karnik

I have installed Qt Open Source from online installer with version 5.14.2, however the Qt Creator application is not working. Whenever I launch the application, a prompt comes, stating 'It looks like Qt Creator closed because of a problem with the "Python" plugin. Temporarily disable the plugin?'. There 3 options to this prompt, 'Disable Plugin', 'Show Details', 'Continue' from which, no option leads to the Qt Creator working. After clicking Show Details, there is following message: Disable plugins permanently in Help > About Plugins..

What should I do?

A little information about the Python on my laptop, I have Python 3.7*(stable)* and 3.8 (latest till date) installed on my laptop.

aha_1980

Hi @atharva-karnik,

what happens if you start QtCreator from the command line, giving the -noload Python option?

C:\Qt\Tools\QtCreator\bin\qtcreator -noload Python (you may need to adjust the path, though).

If that works, you can disable the plugin in the mentioned dialog.

Regards

atharva.karnik

Hi @aha_1980, I tried as you said after setting the directory. It still prompts the same message and no matter what I choose, Qt Creator doesn't launch...

jsulm

@atharva-karnik Try with

C:\Qt\Tools\QtCreator\bin\qtcreator -noload all

If QtCreator starts you can enable one plug-in at a time and check whether is still starts.

atharva.karnik

@jsulm It showed the following prompt:

jsulm

@atharva-karnik Then

C:\Qt\Tools\QtCreator\bin\qtcreator -noload all -load Core

atharva.karnik

@jsulm It prompted to disable the Qml Plugin. It launched after disabling that plugin. However, it is showing much lesser options. Even the Menu bar is reduced!

jsulm

@atharva-karnik That's because almost all plug-ins were disabled. Try now with:

C:\Qt\Tools\QtCreator\bin\qtcreator -noload Python -noload Qml

atharva.karnik

@jsulm It says that: There is no Qml plugin...

jsulm

@atharva-karnik Then try

C:\Qt\Tools\QtCreator\bin\qtcreator -noload Python -noload qml

Or check how it is named in "Help/About Plugins..."

atharva.karnik

@jsulm I tried reinstalling the whole software. The QtCreator was able to launch just after the installation. However, it has descended to the same problem again after rebooting my laptop. I say that a couple of times, the Qt5.dll was quarantined by my Anti-virus before I reported that as a false positive alert. Yet, I am unable to launch it now.
After I typed C:\Qt\Tools\QtCreator\bin\qtcreator -noload Python -noload qml , following dialogue box appears:

If I run it without -noload qml , the system simply does nothing. The process qtcreator.exe gets created (saw in task manager) and then disappears after few seconds.

jsulm

@atharva-karnik Please check what the correct QML plug-in name is in "Help/About Plugins..."