Android resource linking failed

[ataulm]

I'm trying to import Backpack into my project and I'm getting resource linking errors. I'm using version 29.0.0 because at the time of writing, the newer ones aren't building successfully on Jitpack.

/Users/amunim/.gradle/caches/transforms-3/13cf8cefe233e09aab453a1214846e51/transformed/jetified-backpack-android-29.0.0/res/values/values.xml: AAPT: error: resource font/skyscanner_relative_android_book (aka com.example:font/skyscanner_relative_android_book) not found.
    
/Users/amunim/.gradle/caches/transforms-3/13cf8cefe233e09aab453a1214846e51/transformed/jetified-backpack-android-29.0.0/res/values/values.xml: AAPT: error: resource font/skyscanner_relative_android_bold (aka com.example:font/skyscanner_relative_android_bold) not found.
    
/Users/amunim/.gradle/caches/transforms-3/13cf8cefe233e09aab453a1214846e51/transformed/jetified-backpack-android-29.0.0/res/values/values.xml: AAPT: error: resource font/skyscanner_relative_android_black (aka com.example:font/skyscanner_relative_android_black) not found.

If I add some arbitrary fonts (with those names) in my res/font directory, I get past that error and onto another issue:

AAPT: error: resource style/BpkTheme (aka com.example:style/BpkTheme) not found.
error: failed linking references.

Instead of using BpkTheme, I can use BpkDefaultTheme with no issue (is the README outdated?), but it's also necessary not to use AppCompatActivity, nor any Material widgets like MaterialButton. Then it builds and runs.

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I'm unsure if that's the correct approach though, and whether I'm missing things because of these workarounds.

[marianeum]

Thanks for the report! We have now published a new version 31.0.0 which should fix these issues.

Regards the missing BpkTheme this should also be solved by using version 31.0.0 - the theme was introduced after version 29.0.0, so the README was referring to the latest version.