jcenter dependency causing build issues

Describe the bug Build of a flutter project using flutter_barcode scanner fails with the following errors (and more follow-up errors):

FAILURE: Build failed with an exception.

• What went wrong: A problem occurred configuring project ‘:flutter_barcode_scanner’.

Could not resolve all artifacts for configuration ‘:flutter_barcode_scanner:classpath’. Could not resolve org.ow2.asm:asm:7.0. Required by: project :flutter_barcode_scanner > com.android.tools.build:gradle:4.1.3 project :flutter_barcode_scanner > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 project :flutter_barcode_scanner > com.android.tools.build:gradle:4.1.3 > org.ow2.asm:asm-commons:7.0 project :flutter_barcode_scanner > com.android.tools.build:gradle:4.1.3 > org.ow2.asm:asm-util:7.0 Could not resolve org.ow2.asm:asm:7.0. Could not get resource ‘https://jcenter.bintray.com/org/ow2/asm/asm/7.0/asm-7.0.pom’. Could not HEAD ‘https://jcenter.bintray.com/org/ow2/asm/asm/7.0/asm-7.0.pom’. Received status code 502 from server: Bad Gateway

To Reproduce To manually reproduce: try to download the respective file with wget: wget https://jcenter.bintray.com/org/ow2/asm/asm/7.0/asm-7.0.pom for me, the download works only in approximately 1 out of 4 trials, otherwise I receive code 502 from the server.

Expected behavior Building for Android should work.

Additional context See this stackoverflow thread about the issue: https://stackoverflow.com/questions/70687342/jcenter-bintray-com-is-down-error-502-bad-gateway The recommended solution is to replace jcenter() with mavenCentral() in the build.gradle file.

[Harbinguer]

I had the same problem when introducing the flutter_barcode_scanner dependency in my pubspec.yaml.

FAILURE: Build failed with an exception.

• What went wrong: A problem occurred configuring project ‘:flutter_barcode_scanner’.

Could not resolve all artifacts for configuration ‘:flutter_barcode_scanner:classpath’. Could not resolve com.android.tools.build:gradle:4.1.3. Required by: project :flutter_barcode_scanner

I can’t find much documentation about it, so if anyone knows something I would greatly appreciate an answer. The error is a direct consequence of adding the dependency to the pubspec, I have tried to use previous versions and the problem is still there.

[dusalex]

If you want to try it, you can just put this in you pubspec.yaml instead of the regular entry for the package:

flutter_barcode_scanner:
    git:
      url: git://github.com/SIVA-Health/flutter_barcode_scanner.git