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NinjaTrader
Cannot open Ninjatrader Platform
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Hello gabrielle,
The error indicates that NinjaTrader is still running.
Ensure NinjaTrader is fully closed- Right-click the Windows Task Bar -> select (Start) Task Manager
- Select the Processes tab -> click the Image Name column head to sort by name
- Find and select NinjaTrader.exe -> click the End Process button
It may be that a 3rd party or custom script in the workspace is preventing NinjaTrader from fully closing.
Below is a link to a forum post with steps to start without a saved workspace if you would like to test.
Chelsea B.NinjaTrader Customer Service
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Started by CarlTrading, 03-31-2026, 09:41 PM
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Started by CarlTrading, 04-01-2026, 02:41 AM
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by CarlTrading
04-01-2026, 02:41 AM
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Started by CaptainJack, 03-31-2026, 11:44 PM
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03-31-2026, 11:44 PM
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Started by CarlTrading, 03-30-2026, 11:51 AM
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by CarlTrading
03-30-2026, 11:51 AM
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Started by CarlTrading, 03-30-2026, 11:48 AM
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by CarlTrading
03-30-2026, 11:48 AM
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