Estoy trabajando enselenium proyecto de controlador web. Pude construir pruebas enTest Explorer y ejecutar

De inmediato recibo los siguientes errores al reconstruir la solución.

Unit Adapter 3.2.0.0: Test discovery starting
NUnit VS Adapter 2.0.0.0 discovering tests is started
NUnit Adapter 3.2.0.0: Test discovery starting
NUnit VS Adapter 2.0.0.0 discovering tests is started
Attempt to load assembly with unsupported test framework in  C:\..\CustomerTest.exe
NUnit VS Adapter 2.0.0.0 discovering test is finished
Attempt to load assembly with unsupported test framework in  C:\..\LoginTest.exe
NUnit VS Adapter 2.0.0.0 discovering test is finished
Exception NUnit.Engine.NUnitEngineException, Exception thrown discovering tests in C:\..\CustomerTest.exe
Cannot run tests in process - a 32 bit process is required.
NUnit Adapter 3.2.0.0: Test discovery complete
Exception NUnit.Engine.NUnitEngineException, Exception thrown discovering tests in C:\..\LoginTest.exe
Cannot run tests in process - a 32 bit process is required.
NUnit Adapter 3.2.0.0: Test discovery complete
========== Discover test finished: 0 found (0:00:02.5558095) ==========

He cambiado la arquitectura predeterminada del procesador aX64, pero el problema no se resolvió.

Por favor, ayúdame a resolver este problema.

Gracias.