Cannot have more than 0 builds in queue for the account (codebuild)

Question

I'm new to codebuild, I'm getting this error, i've tried the solutions from AWS repost, still not working, I have a basic support plan, so i'm not able to raise a support ticket
some more information:
->source is codecommit repo
-> i'm trying to build an ecr image from that repo
->5 days ago, when i used code build, it worked fine, i have only done a total of 12 builds overall
->I'm a college student trying to build a cicd pipeline

Answer

Hello.

I did a little searching on the error message and found some examples where the issue was resolved by contacting AWS Support.  
https://repost.aws/ja/questions/QUkKVl--5kSmCW42h1sZyq1w/codebuild-error-cannot-have-more-than-0-builds-in-queue-for-the-account  
https://stackoverflow.com/questions/55600828/cannot-have-more-than-0-builds-in-queue-for-the-account

In this case, the issue is with your AWS account, so please open a case with AWS Support under "Account and billing".  
Inquiries under "Account and billing" can be made free of charge.  
https://docs.aws.amazon.com/awssupport/latest/user/case-management.html

Probably, but I thought it was related to CodeBuild quotas.  
https://docs.aws.amazon.com/codebuild/latest/userguide/limits.html  
> Internal metrics will determine the default quotas for concurrent running builds.

Cannot have more than 0 builds in queue for the account (codebuild)

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