Alright, so I went to Window -> Preferences -> FIRST Downloader Preferences and put 539 under “The team number”.
then on the main screen I pressed FIRST -> Deploy, It went through its process and said transfering to robot (no errors) but it does ever work on the robot.
Oh wow, I think I just found my own error but not sure cause can’t test till tomorrow.
For “File to download to the Robot” the default was the FRC-cRIO II file. But then i pressed restore defaults and it defaulted to a .out file.
So I use the .out code file in the workspace -> under the code -> in the PN— (something like that) folder -> debug?
Indeed the file which should be downloaded is a .out file. Usually this is from a subdirectory of your project and ends in Debug/<projectname>.out . Unfortunately, the FIRST Downloader plugin does NOT track changes in projects in the Workbench. By this, I mean that if you only use one project in the workbench, once you set the windows->preferences->First Downloader download file, then things are fine. However, if you use multiple projects, the downloader has no concept of this change and so it will errantly download the wrong .out file in that case. Sigh.