The error, Failure in Loader: VerifyError: Error #1014″, within the Composite Application Framework (Mosaic) can be caused by the presence of a non-interface class within the interface library that defines a service within Mosaic. Service interfaces should not use non-interface classes as arguments or results. For example, if a service that is being implemented returns an ArrayCollection, the result should be specified in the interface as IList. Creating an interface with an ArrayCollection in its definition will cause other tiles to throw this exception.
See also:
Adobe Forums post about this error
Create a composite application: create a service

keep getting gray circled exclaimation mark while on cityville on facebook………..
Hello Frederick,
Giving the good folks who developed Cityville a shout would be the first step to resolving that problem.