All Errors

The auth/user-cancelled error occurs when a user dismisses or cancels a Firebase authentication flow, such as closing a sign-in popup or navigation dialog. While this is intentional user behavior, it needs proper error handling to avoid confusing users with unexpected error messages.

The E11000 duplicate key error occurs when you try to insert a document with a value that already exists in a unique indexed field. This prevents duplicate emails, usernames, or other unique identifiers from being stored in your MongoDB collection.

The "database/permission-denied" error occurs when your client lacks authorization to access Firebase Realtime Database. This is commonly due to unauthenticated access, overly restrictive security rules, or authentication state sync issues. Fix it by implementing Firebase Authentication and configuring proper security rules.

The "Caller does not have required role" error occurs when your Firebase project member, service account, or client lacks sufficient IAM permissions or security rule clearance. This is typically resolved by granting the appropriate IAM roles or fixing Firestore security rules.

This error occurs when your code tries to fetch a Firestore document that doesn't exist at the specified path. The fix depends on whether the document should exist or whether you need to handle missing documents gracefully.

The auth/invalid-credential error occurs when your Firebase authentication credential is malformed, expired, or missing required fields like tokens or OAuth credentials. This typically affects OAuth providers, admin SDK operations, and credential linking scenarios.

Firebase blocks your authentication requests due to too many attempts in a short period. This is a rate-limiting protection that requires implementing exponential backoff, adding CAPTCHA verification, or adjusting Firebase quota settings.

The "already-exists" error in Firebase (Firestore) occurs when trying to create a document with an ID that already exists in the database. This validation error prevents accidental overwriting of existing data.

The "aborted" error in Firebase occurs when operations fail due to too much contention on documents in Firestore, insufficient cloud function instances, or network disconnections. Automatic retries typically resolve the issue, but persistent errors require reducing data contention or increasing function capacity.

The auth/invalid-email error occurs when an email address is not properly formatted or contains invalid characters. Fix it by validating and trimming email input before passing it to Firebase authentication methods.

Firebase Realtime Database network errors occur when your app loses connectivity to Firebase servers due to network timeouts, interrupted connections, or unreachable hosts. Reconnect by checking network status, validating authentication tokens, and implementing proper error handling with exponential backoff.

The "auth/operation-not-allowed" error occurs when a sign-in provider is disabled in your Firebase project. Enable the required authentication method in the Firebase console Sign-in Method tab to resolve this issue.

MySQL error 3580 occurs when named windows reference each other in a circular pattern. Break the cycle by removing unnecessary windows or restructuring references to form a linear dependency chain.

The "PERMISSION_DENIED: User is not authenticated" error occurs when you attempt to access Firestore or Realtime Database without signing in a user first. Firebase security rules require authentication by default, and unauthenticated requests are blocked to protect your data.

This error occurs when inserting data into a partitioned PostgreSQL table when no child partition exists for the data's values. With declarative partitioning, data is routed to child partitions based on constraints, and if a matching partition doesn't exist, PostgreSQL rejects the insert. Create missing partitions ahead of time or use automatic partition management to resolve this.

The messaging/third-party-auth-error occurs when Firebase Cloud Messaging cannot authenticate with third-party push services like Apple Push Notification service (APNs) or Web Push services. This prevents notifications from being delivered to iOS devices or web browsers.

This error occurs when a user attempts to access or modify files in Firebase Storage without the required permissions. The primary cause is misconfigured Firebase Storage security rules that do not authorize the current user's operation.

The storage/retry-limit-exceeded error occurs when Firebase Storage's automatic retry mechanism reaches its maximum timeout while attempting an upload, download, or delete operation. This typically happens with large files, poor network connectivity, or insufficient timeout configurations.

The PostgreSQL "COPY delimiter must be a single character" error occurs when you try to specify a multi-character or multi-byte delimiter in a COPY command. PostgreSQL only accepts single one-byte characters as delimiters. This error typically appears when copying data from files with custom delimiters, and requires either changing your delimiter or pre-processing your data.

This error occurs when your Firebase project has reached its storage quota limit and cannot accept new uploads or file operations. Depending on your billing plan, the quota is either 5GB (Spark/free tier) or pay-as-you-go (Blaze plan). You must either delete existing files, upgrade your plan, or request a quota increase.