I deployed the addin as suggested in PDF file. This tool is not working for us.
It shows error once user insert credentials and click on Ok button:
ERROR: Method not found: 'Void Nintex.Workflow.Common.Utility.RedirectOrCloseDialog(System.Web.HttpContext, System.String)'.
On Clicking Cancel button:
ERROR: Sorry, something went wrong An unexpected error has occurred.
(Screenshot attached for both errors).
The same functionality was working fine for SP 2010 but when we migrated application to SP2013 the credential task doesnt worked.
We found the source code of tool on the below link and Tried to modify the code to fix the error but new WSP is not getting created.
Could you please help in fixing the issue. Thanks a lot.