Error code 0xC00000FD can also occur in UiPath Studio when there is a stack overflow in the process being debugged. This can happen if the workflow is using too many recursive activities or if the workflow has a large number of variables and arguments that are being passed around.
Try the following steps:
- Reduce the number of recursive activities: If your workflow is using recursive activities, try to reduce the number of times they are being called or find alternative ways to achieve the same results.
- Try to use Excel activities instead of Workbook for your case.
- Try to use the Kill Process activity and specify “EXCEL” before interacting with your Excel file.
- Limit the number of variables: If your workflow has a large number of variables and arguments, try to limit the number of variables that are being used at any one time or consolidate variables where possible.
- Close Studio. Delete the packages folder from
%USERPROFILE%\.nuget\packages. When you will reopen the Studio project, the packages folder should be recreated and filled with the required dependencies. - You may try to upgrade your Studio to 2022.10.7 from here https://download.uipath.com/versions/22.10.7/UiPathStudio.msi
- Try to remove the unused variables, especially the jObj ones.