Getting Exception : Could not load type 'Microsoft.Exchange.WebServices.Data.ServerBusyException' from assembly 'Microsoft.Exchange.WebServices' RRS feed

  • Question

  • I have created sample application in which i am getting EmailMessages from Sharepoint online.

    Everything is working. However, I have added Throttling Exception handling for that I have added ServerBusyException.

    After that I am getting below exception when i am going to run the application. If  i remove ServerBusyException exception handling then after everything is working fine.

    Application details:

    Platform: .Net framework 4.5.2

    EWS service 2.0

    .Net framework installed in the system 4.6.1

    Note : Same code is working in some environment where 4.6.2 is installed ( It might be another factor make it work.. this is what i am guessing :) )

    An unhandled exception of type 'System.TypeLoadException' occurred in System.Windows.Forms.dll

    Additional information: Could not load type 'Microsoft.Exchange.WebServices.Data.ServerBusyException' from assembly 'Microsoft.Exchange.WebServices, Version=, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

    Saturday, May 26, 2018 1:40 PM

All replies

  • I would check the version of the EWS Managed API assembly Microsoft.Exchange.WebServices.dll sounds like it maybe trying to use an older version where that type didn't exist


    Monday, May 28, 2018 5:10 AM