If this error in Sitefinity CMS is driving you crazy then there is a simple solution to this problem which is listed below.
This error might be caused when there is some missing index folder.
- So the simple workaround is to go to Administrator tab.
- Then in administrator go to Services and then to Search screen
- This will initialize the services client and all missing folders will be recreated.
Given below are the steps in images which will solve this problem