src/main/java/frc/robot/Commands/Desaccumuler.java

@@ -19,7 +19,7 @@ public class Desaccumuler extends Command {
   // Called when the command is initially scheduled.
   @Override
   public void initialize() {
-    
+    accumulateur.resetencodeur();
   }
 
   // Called every time the scheduler runs while the command is scheduled.

src/main/java/frc/robot/Subsystems/Accumulateur.java

@@ -16,6 +16,7 @@ public class Accumulateur extends SubsystemBase {
   public Accumulateur() {}
   final WPI_TalonSRX accumulateur1 = new WPI_TalonSRX(0);
   final WPI_TalonSRX accumulateur2 = new WPI_TalonSRX(10);
+  final 
   public void encodeur(){
     accumulateur1.configSelectedFeedbackSensor(FeedbackDevice.CTRE_MagEncoder_Relative);
     accumulateur2.configSelectedFeedbackSensor(FeedbackDevice.CTRE_MagEncoder_Relative);