fix #5831: CompassActivity invoked with non-existent cache
fix #5831: CompassActivity invoked with non-existent cache

rsudev/c-geo-opensource,auricgoldfinger/cgeo,mucek4/cgeo,Bananeweizen/cgeo,cgeo/cgeo,pstorch/cgeo,auricgoldfinger/cgeo,auricgoldfinger/cgeo,tobiasge/cgeo,pstorch/cgeo,cgeo/cgeo,superspindel/cgeo,matej116/cgeo,rsudev/c-geo-opensource,matej116/cgeo,pstorch/cgeo,kumy/cgeo,Bananeweizen/cgeo,mucek4/cgeo,tobiasge/cgeo,mucek4/cgeo,cgeo/cgeo,kumy/cgeo,cgeo/cgeo,S-Bartfast/cgeo,tobiasge/cgeo,rsudev/c-geo-opensource,S-Bartfast/cgeo,superspindel/cgeo,kumy/cgeo,superspindel/cgeo,Bananeweizen/cgeo,matej116/cgeo,S-Bartfast/cgeo