can t start demo

[bourbour17]

what this compiling message mean , what should i do?

[NinjaTrader_Erick]

Hello bourbour17 ,

Thank you for reaching out.

To rule out that there are issues with your core files/NinjaTrader Installation, I recommend you try a platform repair first, and if this does not resolve it, then you would want to try launching in Safe Mode.

1. To complete a repair, do the following:

• Shut down NinjaTrader 8
• Go to your computer's Control Panel > Programs & Features (Note: search for 'Control Panel' to find it within the Windows Start Menu. This will be a different window than the Settings page)
• Left-click once on NinjaTrader 8 > select 'Repair' above the list of available programs
• Restart the platform after it finishes repairing, and test for this behavior again. If the issue persists, proceed to step 2.

2. 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.

[bourbour17]

sorry it starts ninjatrader starts but , what does this message mean if ninjatrader works but keep givinng me this message whenever i open it

[NinjaTrader_Erick]

Hello bourbour17 ,

Thank you for you message.

The error continues to appear even after repairing?

In that case:

I recommend this procedure to only isolate the custom folder and create a new one without errors:

1. Close NT8

2. Go to your PC -> Documents -> NinjaTrader 8 -> bin

3. Select the "bin" folder and right click and select "Rename. (Rename). You may need to select "show more options" first.




4. Rename this folder to "OLDbin".

5. Repair the platform so that it creates a new folder.

To repair:

• Go to your computer's Control Panel > Programs and Features (Note: look for 'Control Panel' to find it within the Windows Start Menu. This will be a different window than the Settings page.)
• Left-click once on NinjaTrader 8 > select 'Repair' above the list of available programs
• Restart the platform after it finishes repairing, and test this behavior again.
  • Here is a video I made for your reference: https://www.screencast.com/t/5RH7MjuaQiG

6. Start NT8 and you should now be able to go to Tools -> Import and import any custom indicators you have available.

Please let us know the results of this test, and if you have any other questions.