linker errors on all objects from Qt libraries after updating Qt

[Hasan Al-Baghdadi]

The kit is showing a few warnings.

• Warning: no Debugger set up.
• Warning: CMake configuration has a path to a C compiler set, even though the kit has no valid tool chain.
• Warning: CMake configuration has a path to a C++ compiler set, even though the kit has no valid tool chain.

[SGaist]

Do you have both MinGW 32 and 64 bit installed ?

[Hasan Al-Baghdadi]

Thanks,

I have MinGW64 installed via the Qt installer with all the libraries and such, and a 32bit MinGW exists on my machine independent of Qt with none of the Qt libraries compiled in it. Could this somehow be interfering with my qt kit?

Edit: I also used to have old now uninstalled mingw530_32 and mignw730_32 installed under qt tools as well as old, now uninstalled 32bit compiler for 5.11.2

[SGaist]

If you don't need it, I would remove that version of MinGW and retry.

If still not working, then I would re-install the Qt SDK.

[aha_1980]

@Hasan-Al-Baghdadi

I really think there is a 32/64 bit mixup.

In your tooltip, e.g. the debugger seems to be 32bit while the C++ compiler is 64. I cannot see the C compiler, please click on the Kit to open the details.

We had some users recently complaining about similar problems, so there might be some setup bug involved, we just don't know yet what really goes wrong.

Regards

[Hasan Al-Baghdadi]

@aha_1980

In your tooltip, e.g. the debugger seems to be 32bit while the C++ compiler is 64. I cannot see the C compiler, please click on the Kit to open the details.

This is my kit, at the moment it's all the default settings, does anything in it look incorrect or suspicious.

@SGaist

If you don't need it, I would remove that version of MinGW and retry.

If still not working, then I would re-install the Qt SDK.

I've removed the other version of MinGW installed on my PC, then uninstalled and reinstalled the MinGW 7.3.0 64-bit SDK, unfortunately, that doesn't seem to have fixed anything.

Edit: I just checked the compile output and the follwoing error is returned, it does sound like it has something to do with the kit: Error while building/deploying project RunnyHoney (kit: Desktop Qt 5.12.1 MinGW 64-bit) The kit Desktop Qt 5.12.1 MinGW 64-bit has configuration issues which might be the root cause for this problem. When executing step "Make"

[Hasan Al-Baghdadi]

I just fixed it, by removing the old MinGW from my environment variables and adding the new MinGW's binary directory.

Thanks you very much for your help

[SGaist]

Where did you modify that environment variable ?

[Hasan Al-Baghdadi]

Sorry for the late reply.

I removed the MinGW 32 binary path from Window's default environment variables' path variable and added the MinGW 64 binary path from Qt tools.

[SGaist]

You should rather not have it in your machine global PATH environnement variable.

Usually Qt Creator handles that for you per project so you don't have nasty surprises.