Why are my typemock tests failing when run from Team City

When run from TeamCity, I am getting the following error when running unit tests that use typemock: [12:25:38]

 I have followed the the Server Insallation steps outlined here (http://www.typemock.com/docs/?book=Isolator&page=Documentation%2FHtmlDocs%2Fautodeploy.htm) and here: http://www.typemock.com/docs/?book=Isolator&page=Documentation%2FHtmlDocs%2FBestPractices.htm#ReferencingTypemockBestPractice)

I have also added the "Register Type Mock" task to the Test.csproj

Also I have tried the solution outlined here (https://stackoverflow.com/questions/19005376/getting-teamcity-to-run-unit-tests-using-typemock)

But I still have approximately 100 tests failing. All are Typemock tests. 

All of these tests pass when run locally.

Help!