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I am trying to run Qt6 demo examples on my RPi 3B running Yocto. The problem appears when I try to configure the cross-compilers in Qt Creator "Remote Linux Device".

The build machine is x86-64, running Ubuntu 24.04. I use latest free Qt 6.8.0 and latest Yocto 5.0.3 Scarthgap.

As cross-compilers, I use the ones built as a part of the Yocto SDK build for Raspberry Pi 3 (32 bit), but when I configure Qt Creator with them, I receive an error message:

Compiler GCC cannot produce code for the Qt version (Qt 6.8.0)

As displayed in this screenshot:

Qt Creator Kits tab error message tooltip

The trials to configure with ARM cross-compilers from Ubuntu distribution or ARM website are ending with the similar kind of error messages.

What's causing this problem?

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  • Could it be because your version of Qt looks like it was built for 64bit but you're trying to use a 32 bit compiler? Commented Oct 28, 2024 at 13:36
  • @JarMan, I worry this unfortunately will not be the case as the ARM cross-compilers I tried also, were 64bit Commented Oct 28, 2024 at 18:57

1 Answer 1

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After receiving @JarMan's comment, I verified the Qt and I found that my Qt pointed to the build host Qt installation. After I manually pointed to the cross-compiled Qt from the Yocto SDK, the error disappeared.

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