Trying to create task to execute Method from Assembly and getting error cannot load assembly.

Following is our Setup:

C:\AssemblyExecuteTest\bin\Ass1.dll , Ass2.dll , Ass3.dll

Main assembly is Ass1.dll and it internally uses Ass2.dll and Ass2 internally uses Ass3.dll. Task gets created fine with Ass1.dll and detects main class and proper method with parameters but when we run this task we get Exception saying cannot load assembly ‘Ass2.dll ….” or one of its dependencies.

Any idea why it’s not resolving depend assemblies?

Thanks,
Vipul Patel