"Unhandled exception" when opening Strategy Analyzer in 8.0.2.0

[ArmKnuckle]

I have just installed NT 8.0.2.0.

Open the app, and choose Strategy Analyzer. I am then met with a popup.

"Unhandled exception: Value cannot be null.
Parameter name: collection"

I am at a standstill. Any help/insight?

[NinjaTrader_Jason]

Hello ArmKnuckle,

Can you please send me your log and trace files, so I can investigate. Go to Control Center-->Help-->Email Support. Put 'Att Jason, 1617298' in the subject header and make sure 'Log and trace files' is enabled.

[ArmKnuckle]

Sending through Email Support did not work. It has never worked for me.

I attached the "log and trace" folders to the email address: platformsupport[at]ninjatrader[dot]com with Att Jason, 1617298 in the subject line.


Could you please provide step-by-step instructions how to downgrade/uninstall NinjaTrader from version 8.0.2.0 back to the version 8.0.1.0?

I still have the NinjaTrader 8.0.1.0 installer.

Using the Uninstall program - control panel in Windows 7 (64-bit) to remove NT 8.0.2.0 in insufficient. Installing NT 8.0.1.0 after removing NT 8.0.2.0 causes a series of database errors.

There is an option to ignore the error, but that seems a poor choice.

[NinjaTrader_Jason]

Thank you for sending the files that way.

You uninstall NinjaTrader 8 from the Windows Control Panel. This will not delete the Documents-->NinjaTrader 8 folder which contains all settings and data. It seems this conflicts with the database. Please see the instructions I sent to rename the database and check if the database errors persist.

[FaaastEddy]

Hello,

I'm also seeing this error when opening Strategy Analyzer after upgrading to 8.0.2.0. Is there a temporary workaround?

[NinjaTrader_Jason]

Hello FaaastEddy,

Can you please send me your log and trace files as well, so I can investigate. Go to Control Center-->Help-->Email Support. Put 'Att Jason, 1617298' in the subject header and make sure 'Log and trace files' is enabled.

[FaaastEddy]

Hi Jason.

I have sent you the logs.

Thanks.

[NinjaTrader_PatrickH]

Hello FaaastEddy,

Thank you for sending in your files.

This is planned for resolution in the next release of NinjaTrader 8. I do not have specifics on when the release will occur.