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Live Trading runtime error, no details
Troy Shu
posted Jul 24, 2013

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
Dennis C
Jul 24, 2013

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

Troy Shu
Jul 24, 2013

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

Dan Dunn
Jul 24, 2013

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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Troy Shu
Jul 25, 2013

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

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.