If you’ve customized your run environment, for example by adding packages, the system will build your environment, and, if successful, save the console output to a file called buildLog in /results.

If the system can find this custom environment in its cache, it will use that and you will not see buildLog in your results. This will happen when you run a capsule a second or subsequent time without modifying its environment.

When errors occur during the environment setup phase and are detected by the system, you'll see the following error: 

The buildLog file will have a record of what went wrong. These messages can be hard to parse, so please reach out through live chat or an email to support@codeocean.com if you have any questions. 

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