Error: There was a problem loading the activation library. Code 7

The following error messages may occur when upgrading from an older version of Lumerical software. Typically it is possible to simply install the new version without manually un-installing the older version first. However, in some cases the automatic un-install fails, resulting in these error:

There was a problem loading the activation library. Code 7.

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This can be resolved by:

  1. Close the error message by selecting ‘NO’.

  2. Open the Control Panel > Programs and features, and un-install Lumerical (ie. Ansys Lumerical)

  3. Go to C:\Program Files\Lumerical\ and ensure the product folder (i.e. v202) has been removed. If it is still present, delete the entire folder.
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  4. Reboot your computer

  5. Re-install the new version of the software.

See also:

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