Reply To: Grating coupler design

[Guilin Sun]

There might be something wrong with the software or simulaiton file. Suggestions:

1: please close all files, and restart your computer. If it gives the same error, please have a clean installation, eg, delete all related software and reinstall: https://optics.ansys.com/hc/en-us/articles/5613618572947-Fixing-installation-or-licensing-issues 

2: You may also need to redownload the example files since occasionally the files can be corrupted.

If it gives other error message, please write a new post.