Are you trying to use the Solidworks application, but are you getting the error message '91 api runtime error'?
On this page, you will find more information about the most common causes and most relevant solutions for the Solidworks error '91 api runtime error'. Do you need help straight away? Visit our support page.
We've created a list of solutions which you can follow if you want to solve this Solidworks problem yourself. Do you need more help? Visit our support page if you need professional support with Solidworks right away.