shadcn init Fails on Vite Template: ERR_PNPM_IGNORED_BUILDS esbuild Blocked

What this error means

ERR_PNPM_IGNORED_BUILDS: esbuild build script blocked during shadcn init is a pnpm failure pattern reported for developers trying to fix shadcn init err_pnpm_ignored_builds esbuild build script blocked on vite template. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

shadcn init with Vite template fails with ERR_PNPM_IGNORED_BUILDS because esbuild postinstall script is blocked by pnpm 11’s default security policy. shadcn/ui is a widely-used component library.

Common causes

• Running shadcn init with Vite template via pnpm dlx fails during internal pnpm install because esbuild’s build script is blocked by pnpm 11’s security policy. This is the first interaction new projects have with shadcn/ui.
• shadcn init with Vite template fails with ERR_PNPM_IGNORED_BUILDS because esbuild postinstall script is blocked by pnpm 11’s default security policy. shadcn/ui is a widely-used component library.

Quick fixes

1. Confirm the exact error signature matches ERR_PNPM_IGNORED_BUILDS: esbuild build script blocked during shadcn init.
2. Check the pnpm account, local tool state, and provider configuration involved in the failing workflow.
3. Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

• Verify the command, editor, extension, or API client that produced the error.
• Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
• Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

1. Capture the exact error message and the command, editor action, or request that triggered it.
2. Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
3. Review the source evidence below and compare it with your environment.
4. Apply one change at a time and rerun the smallest failing action.
5. Keep the working fix documented for the team or deployment environment.

How to prevent it

• Keep provider/tool configuration documented.
• Record non-secret diagnostics such as tool version, provider name, model name, and command path.
• Add a lightweight check before CI or production workflows depend on the tool.

Sources checked

• https://github.com/shadcn-ui/ui/issues/10658

Evidence note: shadcn init with Vite template fails with ERR_PNPM_IGNORED_BUILDS because esbuild postinstall script is blocked by pnpm 11’s default security policy. shadcn/ui is a widely-used component library.

Related errors

• shadcn init Vite pnpm error
• pnpm 11 esbuild blocked build

FAQ

What should I check first?

Start with the exact ERR_PNPM_IGNORED_BUILDS: esbuild build script blocked during shadcn init text and the smallest action that reproduces it.

Can I ignore this error?

No. Treat it as a failed pnpm workflow until the root cause is understood.

Is this guaranteed to have one fix?

No. The imported evidence supports the troubleshooting path above, but tool behavior can vary by account, plan, version, provider, and local configuration.

How do I know the fix worked?

Rerun the same command, editor action, or request. The fix is working when that action completes without ERR_PNPM_IGNORED_BUILDS: esbuild build script blocked during shadcn init.