Issue from dragon/q6a/app-dev/npu-dev/qai-appbuilder

[dmitry-a-l]

URL: https://docs.radxa.com/dragon/q6a/app-dev/npu-dev/qai-appbuilder

Time: 4/3/2026, 11:38:58 AM

In step 1.5 "Create QAIRT SDK LIB Symlink" after installing wheel the current dir is ai-engine-direct-helper/dist, so making simlink fails with error

$ ln -s qairt/2.37.1.250807/lib/aarch64-oe-linux-gcc11.2/ ai-engine-direct-helper/samples/python/qai_libs  
ln: failed to create symbolic link 'ai-engine-direct-helper/samples/python/qai_libs': No such file or directory

Also I think it would be much better to specify full path to qairt/2.37.1.250807/lib/aarch64-oe-linux-gcc11.2 using $QAIRT_SDK_ROOT (it was initialized by source bin/envsetup.sh). So the correct command could be kind of

cd ../../
ln -s $QAIRT_SDK_ROOT/lib/aarch64-oe-linux-gcc11.2 ai-engine-direct-helper/samples/python/qai_libs

[tangzz-radxa]

Thanks for reporting this issue! You're absolutely right about both problems:

1. The current directory after installing the wheel is , but the symlink command assumes being in the parent directory
2. Using is much better than the hardcoded path

I've created a PR to fix both issues:

• Added to return to the correct directory
• Changed to use instead of the hardcoded path
• Updated both Chinese and English documentation

PR: #1603

Once this PR is merged, the documentation will include the correct commands that won't fail due to directory issues.

[tangzz-radxa]

Thanks for reporting this issue! I've created a PR (#1615) to fix the symlink command by adding before the command, which ensures the correct working directory after installing the wheel.

The fix has been applied to both Chinese and English versions of the documentation.

You can review the changes here: #1615