Travis job hangs, waiting to be queued

Hello!

We tried to add a job to our CI build but it hangs in “Queued” state and never completes.
Can you help us to figure out, what is the problem?
The link to the build:
https://travis-ci.com/Backendless/Flutter-SDK/jobs/259052035

Best Regards,
Maksym

In your case, language: doesn’t accept a list so you end up requesting nonexistent language: "['generic']".

If you enable build config validation, it should be warning you about such stuff.

Thanks a lot! Now it works.