android app install:Re-installation failed due to different application signatures -


i build app @ 1 pc , copy another, run device, tip:

re-installation failed due different application signatures. 

actually, did not sign app . unfortunately apk have send user , them update automatically (app check version , download , call install), them failed install when update.

my questions:

  1. i did not sign apk, between 2 computers, them sign automatically?
  2. how fix when copy code between pcs?

i have done following post: enter link description here

copy debug keystore of 1 pc in other solve problem.


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