Hello,

 

so seems I found a solution: completely delete poky build directory and start anew.

somehow it works now. It looks like an attempt to use bitbake without apparmor profile in Ubuntu makes some changes in cache which prevents later proper functioning of bitbake.

so the correct way to proceed is not to try bitbake without apparmor profile, and if there are problems after the try - just  start from clean yocto, when apparmor profile is in place

 

Regards

Sergey