title: TFS 2013 MS build error telling The "RegisterAssembly" task failed unexpectedly. System.Runtime.Remoting.RemotingException has been disconnected
body: <p>C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets (4335): The &quot;RegisterAssembly&quot; task failed unexpectedly.
  System.Runtime.Remoting.RemotingException: Object '/57c6900a_1a38_4288_86ac_af0884a7a9eb/nr8uotytqldhem8kcafxupiy_4.rem' has been disconnected or does not exist at the server.</p>
  <p>Server stack trace:
  at System.Runtime.Remoting.Channels.ChannelServices.CheckDisconnectedOrCreateWellKnownObject(IMessage msg)
  at System.Runtime.Remoting.Channels.ChannelServices.SyncDispatchMessage(IMessage msg)</p>
  <p>Have upgraded the build server from MSBUILD 12.0 to MSBUILD 14.0, started observing the above error.</p>
  <p>have checked the .Net framework 4.7.2 is installed on the build server, the build succeeds on both the agents sometimes, looking at the Microsoft.Common.CurrentVersion.targets file, it says, , what does this mean, what should I be looking at, any help is appreciated.</p>