INSTALL_FAILED_VERIFICATION_FAILURE ON ant debug install

Question

I'm developing a native application for Android in C++. The app works fine, and install (with ant debug install) correctly en several devices, but throws an error when I try to install it in a Lenovo A806 with androdid 4.4.2:

enter code install:
 [echo] Installing /home/flush/Project/test/bin/NativeActivity-debug.apk onto default emulator or device...
 [exec] 7378 KB/s (6015860 bytes in 0.796s)
 [exec] Failure [INSTALL_FAILED_VERIFICATION_FAILURE]

The device appears when executing adb devices. I have disabled the Verify Applications Check in security and checked the Unknow sources Options. Still throws the same error.

I also tried installing the android debug certificate (by Install from internal Storage in security options), but it does not works. Despite of a message "certificate is installed" is showing, the certificate are not show in the certificate list.

¿Any clues?

Thank you

Answer 1

I fixed this by doing(in android 8.1)

Settings > Developer Options > Then Turn off Verify Apps over USB

Answer 2

You need to have permissions to write an unsigned app, allowing unknown software sources in settings or in Eclipse, sign the app > Android tools > Export signed application package, if you generate a certificate before.