Why am I getting this error?

Technical
1

  • Warning at swervelib.motors.SparkMaxSwerve.setAbsoluteEncoder(SparkMaxSwerve.java:156): IF possible configure the duty cycle encoder offset in the REV Hardware Client instead of using the absoluteEncoderOffset in the Swerve Module JSON!

  • Unhandled exception: java.lang.RuntimeException: No Conversion Factor configured! Please create SwerveDrive using
    SwerveParser.createSwerveDrive(driveFeedforward, maxSpeed, angleMotorConversionFactor, driveMotorConversion)
    OR
    SwerveParser.createSwerveDrive(maxSpeed, angleMotorConversionFactor, driveMotorConversion)
    OR
    Set the conversion factor in physicalproperties.json OR the module JSON file.REMEMBER: You can calculate the conversion factors using SwerveMath.calculateMetersPerRotation AND SwerveMath.calculateDegreesPerSteeringRotation

  • Error at swervelib.parser.json.ModuleJson.createModuleConfiguration(ModuleJson.java:73): Unhandled exception: java.lang.RuntimeException: No Conversion Factor configured! Please create SwerveDrive using

  • SwerveParser.createSwerveDrive(driveFeedforward, maxSpeed, angleMotorConversionFactor, driveMotorConversion)

  • The robot program quit unexpectedly. This is usually due to a code error.
    The above stacktrace can help determine where the error occurred.
    See Reading Stacktraces — FIRST Robotics Competition documentation for more information.

  • OR

  • SwerveParser.createSwerveDrive(maxSpeed, angleMotorConversionFactor, driveMotorConversion)

  • OR

  • The startCompetition() method (or methods called by it) should have handled the exception above.

  • Set the conversion factor in physicalproperties.json OR the module JSON file.REMEMBER: You can calculate the conversion factors using SwerveMath.calculateMetersPerRotation AND SwerveMath.calculateDegreesPerSteeringRotation

  • at swervelib.parser.json.ModuleJson.createModuleConfiguration(ModuleJson.java:73)

  • at swervelib.parser.SwerveParser.createSwerveDrive(SwerveParser.java:189)

  • at swervelib.parser.SwerveParser.createSwerveDrive(SwerveParser.java:115)

  • at frc.robot.subsystems.swervedrive.SwerveSubsystem.(SwerveSubsystem.java:71)

  • at frc.robot.RobotContainer.(RobotContainer.java:30)

  • at frc.robot.Robot.robotInit(Robot.java:49)

  • at edu.wpi.first.wpilibj.TimedRobot.startCompetition(TimedRobot.java:107)

  • at edu.wpi.first.wpilibj.RobotBase.runRobot(RobotBase.java:365)

  • at edu.wpi.first.wpilibj.RobotBase.startRobot(RobotBase.java:453)

  • at frc.robot.Main.main(Main.java:27)

  • Warning at edu.wpi.first.wpilibj.RobotBase.runRobot(RobotBase.java:379): The robot program quit unexpectedly. This is usually due to a code error.

  • The above stacktrace can help determine where the error occurred.

  • See Reading Stacktraces — FIRST Robotics Competition documentation for more information.

  • Error at edu.wpi.first.wpilibj.RobotBase.runRobot(RobotBase.java:386): The startCompetition() method (or methods called by it) should have handled the exception above.

2

I mean… Have you done this part yet as it’s recommending? It seems to me you’ve put your offsets in the wrong location and it doesn’t like it

3

Hello! Welcome to the wonderful world of software development!

Unfortunately, symptoms like stack traces rarely have a single root cause. If someone guesses root cause correctly, it’s likely because they have seen similar things before. However, it’s still just a guess.

Your post contains the directions for starting out your investigation:

Can you describe what investigation you’ve done so far? What have you tried? What are you not sure about?

1 Like
4

Nevermind, just did not calculate the conversion factor correctly and did not implement the code properly.

2 Likes