Hi @mpq15, welcome to the forum and thanks for posting. Unfortunately this is a bug that I let slip in, in 2021.11 
You can read all about it and the fix/workarounds here:
Bug: “No such executable in PATH: (null)” when loading extension
Hi @mpq15, welcome to the forum and thanks for posting. Unfortunately this is a bug that I let slip in, in 2021.11 You can read all about it and the fix/workarounds here:
Bug: “No such executable in PATH: (null)” when loading extension