Auth.js / NextAuth: [auth][error] MissingSecret: Please define a secret in production
[auth][error] MissingSecret: Please define a `secret` in production. Read more at https://errors.authjs.dev#missingsecret
Immediate Remediation
typescript
Generate random secret via `openssl rand -base64 32` and assign to AUTH_SECRET or NEXTAUTH_SECRET in .env.production.
Root Cause Analysis
Encountered in NextAuth / Auth.js when standard runtime constraints or configuration contracts are breached.
Verification & Guardrails
- Verified in production environments by TraceResolve SRE.
- Requires clean rebuild or service reload to take full effect.
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