I am using the SharePoint Feature Administration and Clean Up Tool from CodePlex to remove faulty features from my 2013 farm after migration from 2010 farm. While the tool does a great job of removing the faulty feature from some sites, I get some errors for some of the other sites. Below are the errors. Can someone explain what this means and what I can do to remove them. I'd really like to clean up the farm. I'm doing this in a test environment in preparation of production migration.
Most of the faulty features found - renders the following error when I prompt to remove it:
2015/10/23 16:47:46 - Exception removing feature 75a0fea7-b0ef-434e-90d6-ce997d970564 fromhttp://webapp1.company.com/sites/sitecollection1/web1 -- Object reference not set to an instance of an object.
Here is a rare success for the same feature:
2015/10/23 16:47:45 - Success removing feature 75a0fea7-b0ef-434e-90d6-ce997d970564 fromhttp://webapp1.company.com/sites/sitecollection1/web2
Thank you,
Rumi