Unable to package for distribution with cronet-embedded due to proguard error

[carl]

trafficstars

ExoPlayer Version

2.18.1

Devices that reproduce the issue

It's a build issue not a device issue

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Not tested

Reproduction steps

We're getting this error when building:

Z:\app\proguard-rules.pro:254:35: R8: Expected char '-' at Z:\app\proguard-rules.pro:254:35
Packaging (Android (ASTC)):         -keep class  org.chromium.net:cronet-embedded.*{;}
Packaging (Android (ASTC)):                                   ^
 Packaging (Android (ASTC)): C:\Users\foo\caches\transforms-2\files-2.1\24ab64baf123a3d956060315164905e3\jetified-cronet-embedded-105.5195.68\proguard.txt:26:30: R8: Expected [!]interface|@interface|class|enum
Packaging (Android (ASTC)): > Task :app:minifyReleaseWithR8 FAILED

and here are the proguard rules:

<proguardAdditions>
    <insert>
    -keep class  org.chromium.net:cronet-embedded.{*;}
    -keep interface org.chromium.net:cronet-embedded.{;}
    -dontwarn androidx.
      -keep class androidx. {; }
      -keep interface androidx.** { *; }
    </insert>
  </proguardAdditions>

Expected result

expect it to build successfully

Actual result

See reproduction steps

Media

N/A

Bug Report

• [X] You will email the zip file produced by adb bugreport to [email protected] after filing this issue.

[rohitjoins]

Although something like this works without any error:

-keep class  org.chromium.net.*
-keep interface org.chromium.net.*
-dontwarn androidx.*
  -keep class androidx.*
  -keep interface androidx.*

This issue looks like a general question about Android development. We'll leave this issue open for ~2 weeks in case anyone wishes to answer it here, however we recommend asking such questions on Stack Overflow.