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CONTRIBUTING: Document debug installation failure

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Jules Aguillon 2022-01-15 19:03:53 +01:00
parent d4eef00a8a
commit 854eb431f3
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CONTRIBUTING.md
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@ -39,3 +39,25 @@ make installd
The debug version of the application won't be removed, both versions will stay
installed at the same time.
## Debugging the application: INSTALL_FAILED_UPDATE_INCOMPATIBLE
`make installd` can fail with the following error message:
```
adb: failed to install _build/juloo.keyboard2.debug.apk: Failure [INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package juloo.keyboard2.debug signatures do not match previously installed version; ignoring!]
make: *** [Makefile:20: installd] Error 1
```
The application can't be "updated" because the temporary certificate has been
lost. The solution is to uninstall and install again:
```sh
adb uninstall juloo.keyboard2.debug
```
Then again:
```sh
make installd
```