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Live Trading runtime error, no details

I'm live trading (paper trading) one of my algorithms that backtests fine, but I get the below error when live trading:

There was a runtime error. See the more detailed error below. If you
need help, please send us feedback.

Once you resolve the problem in the source algorithm, redeploy it to
continue live trading.

Below the error message there is nothing else: no details, no logs. I tried submitting feedback, but no one got back to me. Can someone at Quantopian help me out? Glad to provide any info you need in accessing the algo.

4 responses

Maybe backtest it on the last couple days. See if you can generate a better error message?

Since the algo uses data in the past 120 days, I just tried running the backtest on 120 days + a few days, no errors (also did 120 days + 1 month, 120 days + 2 months). Thanks for the suggestion though

Hi Troy,

Sorry for the opaque error. We need to make that one a lot more clear. It sounds like the problem is the 120 day range. Currently, we only have the "live" data that paper trading uses back to Mar-1-13. 120 days reaches back before that start date, and that's why it's blowing up. We've got a project in motion to add another year to that data, so we'll start supporting warmup periods of 300 days and more, but that's not done yet.

I don't think we've gotten a feedback email from you, unfortunately. My personal email is [email protected].

Sorry for the confusion.


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Awesome, thanks for help Dan. Looking forward to the fix.