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CI could not recreate the keystore

CI (GitHub Actions, EAS, fastlane) · last reviewed 2026-11-10

The error looks like this

base64: invalid input

Why it happens

The keystore secret is missing, empty on forked PRs, or was not decoded to the path gradle expects.

How to fix it

  1. Encode once: base64 -i upload.keystore | pbcopy and store as a repo secret.
  2. In the workflow: echo "$KEYSTORE_B64" | base64 --decode > android/app/upload.keystore
  3. Secrets are not available to pull requests from forks.

Not sure this is your error? Let ReleaseMedic read the whole log

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