Error registering plugins and/or workflows. Plug-in assembly does not contain the required types or assembly content cannot be updated

Question

I implemented one custom workflow in in Visual Studio 2010 using CRM 2011 Developer Toolkit. It was working fine with system generated namespace. But, when I changed the nam

Answer 1

Try to change assembly version.

Answer 2

In our case we used ILMerge and accidentally we merged Microsoft.Xrm.Sdk.dll into our plugin, removing this dll (copy local = false) fixed the issue.

This merged dll was not working anyway as it throw security exception

Inheritance security rules violated while overriding member: 'Microsoft.IdentityModel.Claims.ClaimsIdentity.System.Runtime.Serialization.ISerializeable.GetObjectData

this GetObjectData was present in Microsoft.Xrm.Sdk.dll hence security exception from SandBox deployment.

Answer 3

Unregister the plugin, then register it again.