Hey there! I’ve dealt with this exact weirdness before—Vercel says it deployed successfully but none of your GitHub code changes show up. Let’s walk through actionable fixes to get things back on track:

1. Verify Vercel-GitHub Connection & Branch Settings #

• Head to your Vercel project’s Settings > Git tab. Double-check that:
  • It’s linked to the correct GitHub repository (not a fork or old clone you forgot about).
  • The deployment branch matches the one you’re pushing to (e.g., main vs dev—super easy to mix up!).
  • If permissions look off, re-authorize Vercel’s access to your GitHub account (sometimes OAuth tokens expire silently without warning).

2. Cross-Check Deployment Commit Hash #

• In Vercel’s deployment details, look for the associated commit hash (it’ll look like abc123...).
• Go to your GitHub repo, search for that hash—does it match the latest commit you pushed? If not, Vercel is pulling an old commit. Try manually deploying the correct hash:
  1. Go to Vercel’s Deployments page.
  2. Click Deploy > Deploy specific commit.
  3. Paste your latest commit hash and start the deployment.

3. Clear Vercel Build Cache #

Old build cache is a super common culprit for stale deployments:

• On the failed deployment page, click Redeploy.
• Check the Clear build cache box before confirming. This forces Vercel to pull fresh code from GitHub instead of relying on cached assets that might be stuck on old versions.

4. Inspect GitHub Webhook Status #

• Go to your GitHub repo’s Settings > Webhooks. Look for the Vercel webhook entry.
• Check if recent deliveries succeeded. If there are failures, click into them to see error details (e.g., permission denied, network timeouts).
• If the webhook is missing entirely, disconnect and reconnect your repo in Vercel to regenerate it from scratch.

5. Dig Into Vercel Build Logs #

• Open the deployment’s build log and scan for lines like:

  Cloning repository...
  Checking out commit abc123...
  

• Confirm the commit hash here matches your latest push. If it doesn’t, Vercel isn’t pulling the latest code—this usually points to a connection or branch mismatch issue.

6. Double-Check Git Sync & .gitignore #

• Run these commands locally to ensure your code is actually pushed to GitHub:

  git status  # Check for uncommitted files you might have missed
  git log --oneline  # Compare local commits to GitHub's remote branch
  

• Also, verify your .gitignore file isn’t accidentally excluding the files you modified (easy mistake if you added new paths recently!).

7. Reconnect the Repository As a Last Resort #

If all else fails:

• In Vercel’s Settings > Git, click Disconnect to unlink the repo.
• Re-link the repository from scratch—this resets all webhooks, permissions, and sync settings, which often fixes stubborn sync issues.

Most of the time, clearing the cache or verifying the commit hash fixes this problem. If you still hit walls, look for specific error messages in the build logs or GitHub webhook failures—they’ll give you a clearer clue what’s going wrong.

内容的提问来源于stack exchange，提问作者Zeptar