Error : PVRTexToolCLI : File does not contain a valid CIL image

Hello,

I am trying to run a toolchain on Mac using mono. The toolchain includes PVRTexToolCLI.exe which ran just fine until Sierra OSX upgrade.

After the upgrade, i am getting this error “Cannot open assembly ‘…/tools/PVRTexTool/CLI/Windows_x86_32/PVRTexToolCLI.exe’: File does not contain a valid CIL image.”

Any help would be highly appreciated