[Joe Ross]

Before you edit any files, you should confirm that you have the plugin FRCSquawkSDK version 3.38 installed. If you have an earlier version, you need to update.

There was a few days between when the v20 image was released and when java was updated to support the v20 image. That was the only time editing the file might have been necessary. What the error message is telling you is that you don't have the latest java update.