How can I resolve this error: Loading the include file 'EF.Utility.CS.ttinclude' returned a null or empty string

Question

How can I resolve these errors:

1. Loading the include file \'EF.Utility.CS.ttinclude\' returned a null or empty string.
2. Value does not fall within the

Answer 1

Visual Studio 2017

was getting the same error but only in a test project. after reviewing the test project and the other project successfully referencing that file i found that adding the following to the app.config of the failing project resolved my issue