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| When I press run, nothing happens. Why? |
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If nothing happens when you press 'run', possible explanations include:
- It could be a bad download. Try redownloading your program.
- If you're using the RCX, you could be on the wrong program slot. Check to make sure you're running the correct program. If not, press the gray button on the RCX to change program slots.
- Your motors or sensors might be plugged into different ports than the program specifies.
- You might have programming error. Some simple problems in ROBOLAB include:
* A 'jump land' rather than a 'land jump': if these icons are in the wrong order, your program might not appear to execute.
* A 'wait for' that it is already satisfied: if you have a wait for light and the light sensor is already at that point, the wait for will not pause the program.
* Your program might not be wired together correctly. For tips and tricks about wiring, see the KnowledgeBase question, "What do I need to know about wiring icons together in ROBOLAB?"
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