<aside> ⚠️ Why does this happen? The robot has limited memory that is used by the portal to store program data every time you press Run, and you might have been executing and storing too many variables and data for a while without giving the robot a chance to clean its memory, and now it is being asked to execute more things.

</aside>

1. Copy the following code, paste it to the Portal and run

   globals().pop("ring", None)
   globals().pop("LEDRing", None)
   globals().pop("matrix", None)
   globals().pop("Matrix", None)
   globals().pop("content", None)
   globals().pop("crawler", None)
   globals().pop("Crawler", None)
   globals().pop("imu", None)
   globals().pop("IMU", None)
   globals().pop("microphone", None)
   globals().pop("Microphone", None)
   globals().pop("left", None)
   globals().pop("right", None)
   globals().pop("speaker", None)
   globals().pop("Speaker", None)
   
   import gc
   gc.collect()
   gc.mem_free()
   gc.mem_alloc()
   print("Done")
   

   Then try running your code again.

2. If problem persists, wait for 1 minute and run your code again.

3. If you still cannot run your code, click the Reboot button at the end of the Portal top bar and refresh the Portal.

   

4. If even after Reboot, you still see this problem, turn off your robot and turn on again.