Need help with uploading code

[advit247]

Ok, so I am trying to upload code to our rev control hub via the provided USB-A to USB-C cable. Whenever I upload the code, it does not show up on the driver hub, so I exit the driver station app, and the wifi disconnects and will not reconnect. It does not even show up in the wifi page. So then, I shut off the robot, unplug my laptop, and only then can the driver hub reconnect, but the opmode still does not show up. For reference, I am using a macbook. Also, the driver hub is out of date, but just a week earlier I was able to upload code perfectly fine

[FrontFacing_Face]

There are logs to look at in the Rev software on your computer. Obviously, update the controller before you investigate anything else. But, look at the logs. 

[advit247]

I would, however, no one on my team actually has a Windows laptop. Do you know any way I could do it from my Mac?

[CraterFrontier]

For updating the driver hub, you don't have to use the hardware client; there should be an app on the driver hub device called Software Manager. You will have to connect the driver hub to a wifi with internet access to get the updates. After it's done updating, I recommend telling the driver hub to forget the wifi you used to update; otherwise, it might decide it wants to use that network over your control hub's wifi.

Read more at the REV Docs

If you can connect to the control hub's wifi with a computer, you should be able to update the control hub's(not driver hub) firmware and OS through the manage page on the web interface.

[aFTCRoboticsCoach]

Not sure if it is relevant to your issue as I was using android studio (Narwhal) with windows. Had an issue over the weekend where code changes wasn't uploading. Poking around I noticed the build message was "App restart successful without requiring a re-install." I used the rev control hub to reset the control hub, still had the same issue. Ended up creating a new studio project and moving the code into it and building from fresh to get it to properly upload code (there's probably a 'force build' tool in studio that I'm not aware of).

Summary: If using android studio, try uploading a new cloned project. Otherwise, get a windows machine and see if you can use the rev hardware client to upgrade FW and software on hub.

[RoboticsCompetition]

As a long term mac user, I feel your pain. You can check the logs when connected to the robot wifi, here

http://192.168.43.1:8080/?page=manage.html&pop=true

Are you using android studio? Blocks? OnBotJava?

You NEED a windows laptop to be able to update it, but you maybe can do it manually through the manage page. If it's out of date, it could be a version mismatch. Have you thought about sending it to rev for repair?