Unable to connect to DB error on start up

[mlaihk]

Hello all,

I just installed NinjaTrader8 on my Windows 10 machine trying out the platform.
However, I cannot even start NinjaTrader on the computer.

It crashes at the Initializing Database with an error of:
Unable to connect to DB: Internal error: Cannot open the shared memory region.

How can I fix this?

Many thanks!

[NinjaTrader_ChrisSch]

Hello mlaihk,

Thank you for your note.

Please follow the steps below to manually attach your log and trace files to an email to platformsupport[AT]ninjatrader[DOT]com with "ATTN CHRIS S" in the subject line so I may investigate this matter further.

* Open your NinjaTrader folder under Documents.
* Right click on the 'log' and 'trace' folders and select Send To> Compressed (zipped) Folder.
* Send the 2 compressed folders as attachments to this email.
* Once complete, you can delete these compressed folders.

I look forward to your reply.

[mlaihk]

I have discovered that my documents folder were on a Network Server and when I relocated my documents folder to my local machine, NinjaTrader successfully started. Please fix this in future version.

Hello mlaihk,

Thank you for your note.

Please follow the steps below to manually attach your log and trace files to an email to platformsupport[AT]ninjatrader[DOT]com with "ATTN CHRIS S" in the subject line so I may investigate this matter further.

* Open your NinjaTrader folder under Documents.
* Right click on the 'log' and 'trace' folders and select Send To> Compressed (zipped) Folder.
* Send the 2 compressed folders as attachments to this email.
* Once complete, you can delete these compressed folders.

I look forward to your reply.

[Oupoc]

Same issues

Im having the same issues also my log and trace folders are empty.

[NinjaTrader_ChrisSch]

Hello Oupoc,

Thank you for your note.

This inquiry would be best resolved during a remote support session. Go ahead and write us a note at platformsupport[AT]ninjatrader[DOT]com with "ATTN CHRIS S" in the subject line so we can schedule a support call to best assist you with resolving.

[gdarquea]

I have the same problem. For APEX issues with NT, I had to uninstall NT and restart all over again. In the new installation, I have been wasting lots of time trying to get this to work.
It initially had the error message of problems with compilation, and then the Unable to Connect to DB error. I tried the renaming of the NT file but has not worked. Need support ASAP. Thank you in advance.

[NinjaTrader_Jason]

Hello gdarquea,

While NinjaTrader is shut down, can you please transfer (cut and paste) any database file that is in the Documents-->NinjaTrader 8-->db folder outside the Documents-->NinjaTrader 8 folder. I suggest to transfer them to your desktop. Subsequently start NinjaTrader and check if the error persists.

If you still experience the error, please send me your log and trace files so that I may investigate.

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: Att Jason, 03552547