Thanks train_depot , we had the same problem with our first test of the new controller and this corrections solved it instantly: https://youtu.be/K7jF0Er6kGI
Technology Forum Has Moved!
The FIRST Tech Challenge Technology forum has moved to a new location! Please take a look at our forum blog for links and instructions on how to access the new forum.
Note that volunteers (except for FTA/WTA/CSA will still access their role specific forum through this site. The blog also outlines how to access the volunteer forums.
Note that volunteers (except for FTA/WTA/CSA will still access their role specific forum through this site. The blog also outlines how to access the volunteer forums.
See more
See less
-
Turns out to be the "Instant Run" problem. Instant Run needs to be disabled Android Studio in File->Settings->Build, Execution, Deployment->Instant RunLeave a comment:
-
SDK 3.1 Robot Controller app cannot find Rev Expansion Hub
When I download the controller app from the app store it works fine. It finds the Rev Expansion hub and lets me make a configuration. But when I build the app in Android Studio it cannot find any USB devices.
If I try activating a configuration on the phone that was set up with the app store app, I get the following error:
unable to create robot:Robot failed to start:Attempt to invoke interface method 'boolean.com.qualcomm.robotcore.hardware.configura tion.ConfigurationType.isDeviceFlavor(com.qualcomm .robotcore.hardware.configuration.UserConfiguratio nType$Flavor)' on a null object reference
Any suggestions?
Leave a comment: