Hi Taylor,

I tried changing the sys.append path. It didnt help. I still get the error.

I tried to set the interpreter in the Spyder IDE to the Lumerical’s Python interpreter (provided with the package). Then I ran the script which gave the same raise exception error

Alternately, I tried opening the interpreter directly from the Lumerical by right clicking it. Then I wrote the two lines “import lumapi”, and “fdtd=lumapi.FDTD()”. I still get the same error.

Not sure what’s going on here