Resolving "There was a failure in sending the provision message: Unexpected response code from remote provider InternalServerError" in Azure DevOps Build Referring ACR

 Azure DevOps builds using ACR to push docker image may encounter error "##[warning]There was a failure in sending the provision message: Unexpected response code from remote provider InternalServerError" and would not be able to proceed to starting build job. Let's find the quick fix for it.

This error occurs if you have not set the pool at the pipeline level or job level. Once the pool is set you will be good to go.

Once the pool is added build will work as expected.