android - Cannot upload compiled app to Pebble Watch, but can connect -

i'm working on app between android phone , pebble watch. currently, i'm trying setup basic hello_world.c app provided on cloudpebble.net, receive "unfortunately, pebble has stopped working" error. website "upload failed. no response phone".

this particularly bizarre because have verified connection between phone, watch, , website through being able take screenshot of watch face, not crash app , works fine.

i using samsung galaxy s3.

i dont use cloudpebble, command line tool should work similar. found installing app compiled sdk version > 3.7 on pebble watch old firmware on classic pebble crashs pebble app.