Hey @BanzaiMan, thanks for this answer, I finally got my build to work by upgrading to the Xenial image. While I understand that older images won’t get updates, please consider setting this image as default at least on projects that use Yarn. The current default version throws warnings as Yarn 1.3.2 uses Node’s deprecated Buffer APIs. This is very confusing, especially as I needed to first search through the old Travis CI GitHub repo to find the issue, only to be redirected here where I had to search again to find this thread.