[#850] add exception if element does not match
[#850] add exception if element does not match

hydroshare/hydroshare,RENCI/xDCIShare,RENCI/xDCIShare,RENCI/xDCIShare,RENCI/xDCIShare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,hydroshare/hydroshare,hydroshare/hydroshare,RENCI/xDCIShare,hydroshare/hydroshare,hydroshare/hydroshare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,ResearchSoftwareInstitute/MyHPOM,ResearchSoftwareInstitute/MyHPOM