Error6 reports
Fix ModuleNotFoundError
in Vercel Functions
✅ Solution
The "ModuleNotFoundError" in Vercel Functions typically arises when the required Python dependencies declared in your `requirements.txt` file haven't been installed before deployment. To fix this, ensure you have a `requirements.txt` file in the root directory of your function's code containing all necessary packages, and verify that Vercel is correctly installing these dependencies during the build process by reviewing the deployment logs for any installation errors.
Related Issues
Real GitHub issues where developers encountered this error:
[CI Failure Doctor] 🏥 CI Failure Investigation - Run #29232Mar 17, 2026
[CI Failure Doctor] 🏥 CI Failure Investigation - Run #29224Mar 17, 2026
[CI Failure Doctor] 🏥 CI Failure Investigation - Run #29214Mar 16, 2026
[CI Failure Doctor] 🏥 CI Failure Investigation - Run #29210Mar 16, 2026
[CI Failure Doctor] Node 22 macOS job lacks Python distutils for cpu-features buildMar 16, 2026
Timeline
First reported:Mar 16, 2026
Last reported:Mar 17, 2026
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