"Unknown Command" Error Rhino 7

I was using Rhino and went to use the Untrim command and it came up with “Unknown Command”. This also is happening with the ExtSrf command. I reinstalled rhino but that didn’t work. Has anyone experienced this before and are there any fixes? I didn’t update or change anything from the time it worked until the time it gave the error.

Thanks in advance.

Look in Options>Plug-ins - maybe your “SolidTools” plug-in isn’t loaded or is missing. It contains the Untrim command as well as the ExtendSrf commands.

Ok guy’s, I figured it out just after I posted this. The Solid Tools plugin was unchecked.

Hopefully it will help someone else.