INFO: pip is looking at multiple versions of detrex to determine which version is compatible with other requirements. This could take a while.
ERROR: Cannot install -r requirements.txt (line 10) and -r requirements.txt (line 11) because these package versions have conflicting dependencies.

The conflict is caused by:
detectron2 0.6 depends on omegaconf<2.4 and >=2.1
detrex 0.3.0 depends on omegaconf==2.1.0