Summary
Following error is encountered when trying to delete the mailbox in exchange in HMC environment. Operation failed. : Unable to generate a temporary class (result=1). error CS0266: Cannot implicitly convert typeMicrosoft.Provisioning.Providers.Exchange2007Provider.Data.GetMailbox_ResponseResultImapMessagesRetrievalMimeFormat?' to 'Microsoft.Provisioning.Providers.Exchange2007Provider.Data.GetMailbox_ResponseResultPopMessagesRetrievalMimeFormat?'. An explicit conversion exists (are you missing a cast?)

Applies To
MachPanel all versions
HMC 4.0
Windows Server 2003

Solution
This error is not associated with MachPanel directly. It is caused by HMC and to resolve this error please refer to the link below:

http://forums.asp.net/t/1137212.aspx

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