unhandled exception: an item with the same key has already been added

[markyb0y]

I get the message "unhandled exception: an item with the same key has already been added" when I click to go onto the "Edit" tab on the historical data form. Clicking ok I get the circular "waiting" mouse pointer. I added over 100+ instruments (Daily Data) from Kinetick end of day. Is there a limit to how many instruments you can have in the historical database?

Can you advise please?

Thanks


Mark

[NinjaTrader_Jason]

Hello Mark,

There is no limit on the amount of instruments for which you can have historical data.

Can you please send me your log and trace files so that I may look into what occurred.

You can do this by going to the Control Center-> Help-> Email Support

Ensuring 'Log and Trace Files' is checked will include these files. This is checked by default.

Please reference the following ticket number in the body of the email: Attn Jason, 2853374

[NinjaTrader_Jason]

Hello Mark,

Thank you for sending the files.

I notice you have a previous version installed. Can you please download and install the latest NinjaTrader 8 version (8.0.23.1) and check if the crash persists.

First, please make a copy of the license key entered at Control Center-->Help-->License Key as you need it to download NinjaTrader.

• Make sure NinjaTrader is shut down.
• Download and install the latest NinjaTrader 8 version from the link below.
  https://ninjatrader.com/PlatformDirect

Once installed, please start NinjaTrader and check if the missing data is loaded. If not initially, please right click in the chart and select "Reload All Historical Data".



I notice the crash happened for the first time on November 26th. Were there any changes in NinjaTrader on this date? Could it be you created a custom instrument at Control Center-->Tools-->Instruments?

If the issue persists, please try the following.

• Shut down NinjaTrader.
• Navigate to Documents-->NinjaTrader 8-->db
• Transfer (cut & paste) the "day" folder temporarily to your desktop.
• Start NinjaTrader and check if you can open the Historical Data window without issue.