I tried that but it failed. Error message below. That's why I thought I had to go to Github. [ 25%] Linking CXX executable indi_nexdome [ 25%] Built target indi_nexdome make: *** [Makefile:152: all] Error 2 [ 6%] Built target indi_azgti_telescope [ 11%] Built target indi_staradventurer2i_telescope [ 16%] Built target indi_eqmod_telescope [ 16%] Built target indi_astrolink4 [ 17%] Built target indi_lx200aok [ 19%] Built target indi_starbook_telescope [ 20%] Built target indi_starbook_ten [ 20%] Built target indi_sx_wheel [ 22%] Built target sx_ccd_test [ 23%] Linking CXX executable indi_sx_ccd /usr/bin/ld: CMakeFiles/indi_sx_ccd.dir/sxccd.cpp.o:(.data.rel.ro+0xcc): undefined reference to `INDI::CCD::addFITSKeywords(fitsfile*, INDI::CCDChip*)' collect2: error: ld returned 1 exit status make[2]: *** [indi-sx/CMakeFiles/indi_sx_ccd.dir/build.make:102: indi-sx/indi_sx_ccd] Error 1 make[1]: *** [CMakeFiles/Makefile2:1401: indi-sx/CMakeFiles/indi_sx_ccd.dir/all] Error 2 make: *** [Makefile:152: all] Error 2 stellarmate@stellarmate:~ $Read More...