duplicate symbol _OBJC_METACLASS_$_SBJsonWriter error

Discussion created by kpinkerman on Aug 23, 2010
Latest reply on Oct 19, 2010 by wuting0521
After creating a successful application using the ArcGIS library, I am attempting to add the Facebook library functions.  Once the library files are added (no extra code written), the following error appears:

ld: duplicate symbol _OBJC_METACLASS_$_SBJsonWriter in /Users/.../Library/SDKs/ArcGIS/iphonesimulator.sdk/usr/local/lib/libArcGIS.a(SBJsonWriter.o) and /Users/.../build/

This seems to be an issue with the libArcGIS.a framework conflicting with Facebook's library.  Is this a known issue?  Does anyone know of a workaround?  Thanks!