Ninjatrader application won't boot up

[EnveousColnago]

Just trying to open up NinjaTrader 8. I haven't changed anything since I last opened it two days ago, but now when I open the application file, I get the login pop-up window, I enter my credentials, and the "N" logo appears in the middle of my screen like it's starting up, but the program never opens. I tried shutting down the computer and restarting, then I downloaded and installed the latest NT release, and it's still not starting up

[NinjaTrader_Erick]

Hello EnveousColnago,

Thank you for reaching oit.

Do you happen to have the Apex Tool Kit installed? Something similar was reported a couple weeks ago where the Apex add-ons needing updating stopped the platform from launching.

Please try testing your platform in Safe Mode to verify if this behavior is being caused by a 3rd-party add-on or isolated to the last active workspace, using the steps below.

Safe Mode will prevent NinjaTrader from:

• Loading workspaces and connecting on start-up.
• Loading custom assemblies (i.e. 3rd-party add-ons and NinjaScripts)
• Getting instrument updates from the server

To enable Safe Mode, you can use the following steps:

• Shut down NinjaTrader.
• Click on the Windows Start Button
• Search for and Launch NinjaTrader (Safe Mode)
• You may then verify you are in Safe Mode by going to Help -> About.

Once you have opened the platform in Safe Mode:

• Reconnect to your Data Provider
• Please open a new chart with no custom bar types/indicators/templates and test for issues.

Does the behavior persist on this blank Workspace in Safe Mode?

• If not, please try opening your previous workspace by going to the Control Center > Workspaces drop-down. It may already show as being open. Hit 'close' and do not save and then re-open it again for your windows to re-appear. You will notice that no 3rd-party add-ons are running in Safe Mode.

Does the behavior return on your regular Workspace in Safe Mode?

• If not, restart NinjaTrader, and test for the behavior on your Workspace normally once more with your 3rd-party add-ons available. If this reintroduces issues, I suggest rebuilding your workspace, adding 1 add-on at a time.
• Please keep track of what add-ons you add back in to identify the cause of the behavior if it returns.

If it does not return, it indicates the error was isolated only to your other Workspace. I also suggest making a backup of your workspace so we can restore a working version of it if the issue returns. You will want to keep this backup file on an external hard drive or uploaded to a cloud drive such as Google Drive, Dropbox, or OneDrive.


To create a backup, go to the Control Center > Tools > Export > Backup File. Additional information about backups may be read in our Help Guide linked below.

• NinjaTrader 8 Help Guide — Backup and Restore

Please let me know the results of this test. I look forward to your response.

[EnveousColnago]

I unistalled the Apex tool kit and it's booting normally now. Thanks!