I have installed cm-10.1-20130116-unofficial-maserati.zip on my Droid 4. That system boots with no problems and runs. I am now trying to install gapps-jb-20121212-signed.zip and I get an error "unable to open zip file. I have downloaded the file 3 times, so I don't think it is a corrupt file. The file is in the same root directory that the cm.zip file installed from. I have wiped all cache, and installed the CM system multiple times to start from scratch. After cmod installed I tried to open the file manager an move the gapps file from the external sd card to the internal memory but could not figure out how to move the file using that file manager.
Any help please!!! phone is useless now.