I am trying to create an environment from a .yml file. The solver is running interminably. What can be a solution.

I tried installing mamba but getting the error

Solving environment:
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistency:

• defaults/osx-64::libwebp==1.2.2=h56c3ce4_0
• defaults/osx-64::qtwebkit==5.212=h24dc246_4
  failed with initial frozen solve. Retrying with flexible solve.

I tried cleaning the cache but it also did not work.

Any suggestions will be helpful.