INTRODUCTION

I just uninstalled SharePoint SQL Reporting Service from my development environment because it’s no longer used and was using an incorrect version. The uninstallation was straight forward. After the uninstallation was finished, I went to Central Admin home page and it loaded fine. Only until I clicked any of the Central Admin internal pages eg. Manage Web Applications did it start to break. None of the internal pages were working! I was so nervous that I thought I have broken my DEV environment which was very crucial for the progress of a particular project I’m currently working on.

The error I was getting on the browser was:

Unexpected error has occurred. An error has occurred on the server.

Within the logs I get:

System.Security.Policy.PolicyException: Required permissions cannot be acquired

RESOLUTION

After some looking around I realized that the SQL Reporting Service DLL somehow was not cleaned up properly. It still existed in the “bin” directory of the Central Admin even though I have uninstalled it from the server.

I simply deleted the DLL and it all worked fine again.

Hope this helps,

Tommy