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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Unexpected Website Error : [A]ProfileCommon Cannot be Cast to [B]ProfileCommon

Unexpected Website Error : [A]ProfileCommon Cannot be Cast to [B]ProfileCommon

Overview

The following error appears when launching the Orion Web Console:

Error:<[A]ProfileCommon cannot be cast to [B]ProfileCommon. Type A originates from 'App_Code.bbi_kroo, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\6faafa1c\92094bad\App_Code.bbi_kroo.dll'. Type B originates from 'App_Code.giuyuvtm, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\6faafa1c\92094bad\App_Code.giuyuvtm.dll'.>

Environment

All NPM versions

Cause 

This can occur when the temporary ASP.net files are corrupted.

Resolution

  1. Stop the IIS service. This is named World Wide Web Publishing Service.
  2. Go to the following locations and delete everything (.NET cache):
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root
  3. Restart the IIS service.
  4. Restart all SolarWinds services
  5. Web Console will be slow as files get rebuilt.

 

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