PyBOMBS (Python Build Overlay Managed Bundle System) is the GNU Radio install management system for resolving dependencies and pulling in out-of-tree projects.
It was simply because of the old default_prefix configuration (for me it was GnuRadio-3.8).
I just redefined it using this command: pybombs config default_prefix {prefix_name}
I have a problem when installing GnuRadio 3.10 using the main branch.
Previously, I installed the gr 3.8 version but I removed it (using rm -rf /GnuRadio-3.8/) before installing the new version.
How can I solve this problem?