a

robomaster_pi/command_executer.py

@@ -27,7 +27,10 @@ class CommandExecutor(Node):
 
     def execute_command(self, name, command, parameter):
         try:
-            process_handle = subprocess.Popen(["ros2", "launch", "robot_loc", command, parameter], text=True)
+            if parameter == "-":
+                process_handle = subprocess.Popen(["ros2", "launch", "robot_loc", command], text=True)
+            else:
+                process_handle = subprocess.Popen(["ros2", "launch", "robot_loc", command, parameter], text=True)
             self.running_processes[name] = process_handle
             process_handle.wait()  # Wait for the process to finish
             if name in self.running_processes: