The programming team and I are currently working with a small test robot we built in the preseason. So far, we have been able to make the robot and make a simple drive system so it can drive based off of user input from a controller. Recently, we re-imaged and re-installed a new JRE onto the roborio that our test robot has to the new 2016 image/jre. Previously, our code would work, now it doesn’t and we don’t now why?
Here is the console log on eclipse
Buildfile: C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build.xml
Trying to override old definition of task classloader
clean:
[delete] Deleting directory C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build
[delete] Deleting directory C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\dist
compile:
[mkdir] Created dir: C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build
[echo] [athena-compile] Compiling src with classpath=C:\Users\RM316CSHP2/wpilib/java/current/lib/WPILib.jar:C:\Users\RM316CSHP2/wpilib/java/current/lib/NetworkTables.jar: to build
[javac] Compiling 6 source files to C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build
jar:
[echo] [athena-jar] Making jar dist/FRCUserProgram.jar.
[mkdir] Created dir: C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\dist
[mkdir] Created dir: C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build\jars
[echo] [athena-jar] Copying jars from C:\Users\RM316CSHP2/wpilib/java/current/lib/WPILib.jar:C:\Users\RM316CSHP2/wpilib/java/current/lib/NetworkTables.jar: to build/jars.
[copy] Copying 2 files to C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\build\jars
[jar] Building jar: C:\Users\RM316CSHP2\Desktop\Robotics\Run-Motor\dist\FRCUserProgram.jar
get-target-ip:
[echo] Trying Target: roboRIO-219-FRC.local
[echo] roboRIO found via mDNS
dependencies:
[echo] roboRIO image version validated
[echo] Checking for JRE. If this fails install the JRE using these instructions: https://wpilib.screenstepslive.com/s/4485/m/13503/l/288822-installing-java-8-on-the-roborio-using-the-frc-roborio-java-installer-java-only
[sshexec] Connecting to roboRIO-219-FRC.local:22
[sshexec] cmd : test -d /usr/local/frc/JRE
deploy:
[echo] [athena-deploy] Copying code over.
[scp] Connecting to roboRIO-219-FRC.local:22
[scp] done.
[sshexec] Connecting to roboRIO-219-FRC.local:22
[sshexec] cmd : killall -q netconsole-host || :
[scp] Connecting to roboRIO-219-FRC.local:22
[scp] done.
[echo] [athena-deploy] Starting program.
[sshexec] Connecting to roboRIO-219-FRC.local:22
[sshexec] cmd : . /etc/profile.d/natinst-path.sh; /usr/local/frc/bin/frcKillRobot.sh -t -r;
[sshexec] killall: lvrt: no process killed
[sshexec] Remote command failed with exit status 1
[sshexec] Connecting to roboRIO-219-FRC.local:22
[sshexec] cmd : sync
BUILD SUCCESSFUL
Total time: 14 seconds
and here is the RioLog output (there’s a load of these messages oncoming every 2 seconds or so)
➔ Launching «'/usr/local/frc/JRE/bin/java' '-jar' '/home/lvuser/FRCUserProgram.jar'»
execvp: No such file or directory
What I think is that this means that there is no JRE on the rio, however we did successfully install it (or so the person who did it said so)
