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#Deploy Hono to Vercel zero configuration leads to error module not found when using path alias
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When deploying a Hono app to Vercel with zero configuration, if you encounter a "module not found" error related to path aliases, the most likely cause is that Vercel's build environment is case-sensitive and may not recognize your path aliases unless they are properly configured.
The knowledge sources do not provide a Hono-specific solution for path alias issues, but they do explain that "module not found" errors often result from letter-casing inconsistencies or misconfigured import paths. For Next.js (and generally for TypeScript/JavaScript projects), you need to ensure that your tsconfig.json or jsconfig.json includes the correct "baseUrl" and "paths" options to support absolute imports and module path aliases. This configuration is necessary for the build system (including Vercel) to resolve your aliases correctly:
{
"compilerOptions": {
"baseUrl": "src/",
"paths": {
"@/components/*": ["components/*"]
}
}
}
Make sure these settings are present and that your import statements match the actual file and directory casing exactly, as Vercel's filesystem is case-sensitive. Also, ensure that your build process (e.g., Vite, if used with Hono) is set up to respect these aliases.
If you still encounter issues, review the Vercel build logs for clues and double-check that your local environment matches the deployment environment in terms of case sensitivity and alias configuration. For more details on resolving "module not found" errors, see the Vercel guide: How do I resolve a 'module not found' error? and Set up Absolute Imports and Module Path Aliases (the latter is Next.js-specific, but the aliasing principle applies broadly).