ERROR cicd build ai_generated true

ERROR: No buildpack groups passed detection. Please check that you are running against the correct path.

ID: cicd/buildpack-detect-failed

Also available as: JSON · Markdown
85%Fix Rate
88%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
any active

Root Cause

Cloud Native Buildpacks (pack, Heroku, Cloud Foundry) cannot detect the application type. The detection phase examines files like package.json, requirements.txt, go.mod, etc. Failure means no buildpack in the group matched the application structure.

generic

Workarounds

  1. 90% success Ensure the correct project files exist in the root directory
    For Node.js: ensure package.json is in the root. For Python: add requirements.txt or setup.py. For Go: add go.mod. For Java: add pom.xml or build.gradle. Check that the build path points to the correct directory.
  2. 88% success Explicitly specify the buildpack to use
    Use pack build --buildpack <buildpack-uri> or add a project.toml file with [[build.buildpacks]] entries to explicitly select the buildpack instead of relying on auto-detection.

Dead Ends

Common approaches that don't work:

  1. Adding multiple conflicting language files to trick detection 75% fail

    Multiple detection matches can cause ambiguous buildpack ordering or selection of the wrong buildpack, leading to build failures later in the process

  2. Specifying a buildpack URL without verifying it supports the app type 70% fail

    An incompatible buildpack will fail at the build phase instead of detection, producing more confusing errors

Error Chain

Leads to:
Preceded by:
Frequently confused with: