INTRODUCTION

I was trying to edit a custom Visual Studio workflow in SharePoint. And upon clicking the workflow, instead of redirecting me to the Workflow Association page, it returned me with ASP.NET error page.

In the error log file I get the following error that is totally unrelated:

Failed to find the XML file at location 14\Template\Features\CustomWebParts\feature.xml

RESOLUTION

Came to find out that the workflow solution is not even in the solution store. So the resolution is to just re-add the solution WSP and re-deploy.

Hope this helps,

Tommy