Export/Import problem with latest release 8.1.2.1

[shortrader]

I updated my machine this morning with the latest NT8 release. Tonight, I performed my first export. The backup file is 23% larger than my last one using the prior version. And, I tried to Import this same file, it's been running for 30 minutes, still in 'Unpacking NinjaTrader Archive'. I have rebooted, re-exported, and tried again. Same thing. I think I will revert back to prior version, but wanted to see if anyone else has experienced this?

Update: I am having huge issues with this release. I was unable to find a document on how to downgrade. The process requires uninstalling 8.1.2.1, but I don't want to lose all my personal code/indicators/strategies. If anyone knows how to downgrade without losing code please advise.

[NinjaTrader_Jason]

Hello shorttrader,

You can perform an uninstall/reinstall of NinjaTrader Desktop using the instructions below.

You will save all settings and data including your charts, indicators and strategies. They are saved at Documents-->NinjaTrader 8 which is not deleted when you uninstall NinjaTrader Desktop in Windows.

• Shut down NinjaTrader Desktop
• Uninstall NinjaTrader Desktop via Windows start menu-->Settings-->Apps.
• Download and install NinjaTrader 8.1.1.7 as per the link below. You can find version 8.1.1.7 on the right under 'Prior Releases'.
• https://support.ninjatrader.com/s/ar...language=en_US

I can restore backup files in 8.1.2.1 successful. If you still can't restore the backup file, I suggest to create separate backup files for each item (Configuration files, Database, Historical chart data, etc). Subsequently check if you can import the backup files. Could it be the issue only happens for a certain item?

[QuantKey_Bruce]

I updated my machine this morning with the latest NT8 release. Tonight, I performed my first export. The backup file is 23% larger than my last one using the prior version. And, I tried to Import this same file, it's been running for 30 minutes, still in 'Unpacking NinjaTrader Archive'. I have rebooted, re-exported, and tried again. Same thing. I think I will revert back to prior version, but wanted to see if anyone else has experienced this?

Update: I am having huge issues with this release. I was unable to find a document on how to downgrade. The process requires uninstalling 8.1.2.1, but I don't want to lose all my personal code/indicators/strategies. If anyone knows how to downgrade without losing code please advise.

To clean install 8.1.1.7 but save your work, make a copy of your Documents -> NinjaTrader 8 folder, or at least of your templates, workspaces, and bin folders, along with anything else you know you need from the NinjaTrader 8 folder. Then uninstall NinjaTrader using Settings -> Apps -> Installed Apps -> NinjaTrader -> Remove. Delete the folder Documents -> NinjaTrader 8. Delete the folder Program Files -> NinjaTrader 8. Install the older version. Copy your files back to where they were in Documents -> NinjaTrader 8. You can save Config.xml to save your connection information etc. and this usually works. You might have to re-enter some passwords. Good luck and make backups.

[shortrader]

Thanks Bruce and Jason for the info. I am slowly getting my machine back. I had to completely wipe the NinjaTrader 8 directory and start over. I was getting dozens of compiler errors referencing SuperDomColumns, something that I've never used, so I know I don't have any custom code using these objects. I'm guessing that when I aborted the Import after 30 minutes of waiting, I corrupted something. Anyway, I installed a vanilla 8.1.1.7, and am manually copying my scripts, templates, and workspaces a little at a time. Resolving assembly reference issues as I go. Jason - I don't believe its the Import/Export that's the issue. I think the actual issue is with recompiling. Anyway, quite the mess but I think I'm past the worst of it. Thank you both for your help.