<https://travis-ci.org/turansky/upsource-api> Any...

# gradle

[turansky]

https://travis-ci.org/turansky/upsource-api

Any ideas about problem cause?

Same problem described here - https://discuss.gradle.org/t/kotlin-plugin-error-could-not-generate-a-proxy-class-for-class-org-jetbrains-kotlin-gradle-tasks-kotlincompile/22723