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I got this error trying to run cloud backtest:
An error occurred during this backtest:
[ERROR] FATAL UNHANDLED EXCEPTION:docker: Error response from daemon: Duplicate mount point:
/Data/alternative/quiver/wallstreetbets/universe.,See 'docker run --help'.
What might be the cause?
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Mia Alissi
The error you're encountering, "Duplicate mount point: /Data/alternative/quiver/wallstreetbets/universe," suggests that there is a configuration issue in your backtest setup where the same data source is being mounted more than once. Here are some steps to help you resolve this:
Check Data Source Configuration: Ensure that your algorithm or configuration script does not attempt to mount the same data source multiple times. This can happen if you have multiple calls to add the same data source or universe.
Inspect Custom Data Subscriptions: If you are using custom data, verify that each data subscription is unique and not being added more than once. Use the
add_datamethod carefully to avoid duplication.Review Universe Selection: If you are using universe selection, ensure that the universe is not being added multiple times. The
add_universemethod should be used once per unique universe.Configuration Files: If you are using configuration files or scripts to set up data sources, double-check these files for duplicate entries.
Consult Documentation: Refer to the QuantConnect documentation for guidelines on setting up data sources and handling custom data. This can provide insights into best practices and common pitfalls.
Contact Support: If the issue persists after checking your configuration, consider reaching out to QuantConnect support with details of your setup for further assistance.
By following these steps, you should be able to identify and resolve the duplicate mount point issue in your cloud backtest.
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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
Shiming He
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 QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect 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. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.
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