no CMAKE_CXX_COMPILER

Christian Ehrlicher

Move your mouse over the yellow exclamation mark to see what is wrong.

m5p3nc3r

I get this:

But its not telling me anything about how to fix it. Does the MSVC toolchain not have a valid C/C++ compiler in it? If not, where do I get one from for Windows (I a linux developer, not sure I'm enjoying the windows development world!)

Christian Ehrlicher

@m5p3nc3r said in no CMAKE_CXX_COMPILER:

But its not telling me anything about how to fix it.

Look at this configuration and see if the paths are correct would be a start.

m5p3nc3r

Sorry - which configuration?

m5p3nc3r

I have checked the location of the auto-detected c/c++ compilers and they seem to be correct.

m5p3nc3r

Some posts I'm finding suggest that CMake needs to be run from a 'Visual Studio Command Prompt'. But I don't have VS installed, just the toolchain components from the VS Installer app. I do have VS Code installed, but that doesn't have the option of a 'Command Prompt'.

I have spent way too much time on trying to get a simple QT 'Hello World' app running here :o(

cristian-adam

Qt Creator will use the vcvars*.bat files to determine the environment for the Visual C++ compiler. Running these vcvars*.bat files takes time and therefore they are done asynchronously.

Unfortunately Microsoft is doing updates pretty often and Qt Creator sometimes needs a little "push" to get things right. In Preferences > Kits > Compilers do the following:

Click on Remove All
Click on Re-detect
Restart Qt Creator and wait a few minutes until the detection has been done.

Alternatively you can install the free compiler option (MinGW) which doesn't have this issue.

m5p3nc3r

Ok, thanks for the feedback. I tried your approach, but it didn't seem to work for me. Waited over 10 minutes, but still nothing.

I am going to try the MinGW route - this is a tool I haven't used in /forever/!!

m5p3nc3r

MinGW was a no-go. I think it doesn't like windows on arm... So last attempt - wsl2 and ubuntu... Installing now - fingers crossed!

m5p3nc3r

WSL is my friend - this worked for me.

Thanks to everybody for your help in this thread. Now to try and create something :o)