Not naming a type - C++

Question

I am trying to convert an Adobe CS4 based plugin to CS5. This project has never been mine, this is the first time that i am seeing it.

When I compile the source with what i was given, I get errors like: Does not name a type

Example:

SPAPI SPErr SPBasicAcquireSuite( const char *name, int64 version, const void **suite );

I get that:

SPErr does not name a type

I dont see any classes with SPErr being defined, but I doubt that Adobe has left this out of the SDK.

I am using the PS_CS5_SDK_3 SDK