ninja trader unable to open db: unable to open database file system

[hbones4445]

hi i can't launch ninja and get the attached error. i've tried to rename the ninjatrader file but am unalable to do so. i've reinstalled and still won't work. Any help would be appreciated.

[QuantKey_Bruce]

Which version? Have you tried doing a clean install by renaming your Documents -> NinjaTrader 8 folder to "NinjaTrader 8 Set Aside" and then uninstalling and reinstalling from the download?

[NinjaTrader_ChrisL]

Hi, thanks for posting. Please try removing the old database file. Close down NinjaTrader, then go toDocuments\NinjaTrader 8\db and delete the NinjaTrader.sqlite file (Or it may be named NinjaTrader.sdf). After this, try starting NinjaTrader. Also please make sure you are running the latest version of the platform. You can download the installer by loggin into your account here:

https://account.ninjatrader.com/welcome

[hbones4445]

renaming the DB folder worked. Thanks all!