error message, I re-generate the certificate, but the same error message，  I re-push device-profile.xml  to  /home/developer  

samsung gear s2 device

Error code: SIGNATURE_INVALID

Error message: 

Command: /usr/bin/pkgcmd -i -q -t wgt -p “/opt/usr/apps/tmp/TestTizen.wgt”

Management: Check author certificates in Preferences > Tizen SDK > Secure Profiles > Profile items.

see a screenshot:

http://pan.baidu.com/s/1dDXRU2P

thanks