All Errors

This error occurs when a Firebase ID token contains invalid claim values, typically a mismatched "aud" (audience) or "iss" (issuer) claim. Fix it by ensuring tokens come from the same Firebase project and that your service account configuration matches your client configuration.

This MySQL error occurs when you attempt to execute a COMMIT statement or an operation that causes an implicit commit inside a stored function or trigger, which MySQL does not permit. The error prevents transaction control statements from executing in these contexts.

The 'NOPERM this user has no permissions' error occurs in Redis 6+ when an authenticated user attempts to execute a command, access a key, or publish to a channel they don't have permission for. This happens due to Access Control Lists (ACL) restricting the user's capabilities. Fixing this requires granting appropriate permissions through ACL configuration.

Firebase throws RESOURCE_EXHAUSTED when your project hits quota limits on reads, writes, or storage. Enable billing, optimize your queries to reduce consumption, or request a quota increase from Google Cloud Console.

This MySQL authentication error (1045) occurs when connection credentials are rejected during the authentication phase. The error indicates MySQL received the password but rejected it due to authentication method mismatch, incorrect password, wrong user account, socket authentication plugin, or permissions issue. Common on fresh installations with auth_socket authentication or when password authentication is not properly configured.

MySQL ERROR 1045 occurs when authentication fails during login. This happens when the username and password don't match, the user doesn't exist, or the host isn't allowed. The error appears immediately when connecting to MySQL and prevents database access until credentials are corrected.

VACUUM is a PostgreSQL maintenance command that cannot run inside a transaction block. This error occurs when your connection has an active transaction. Enable autocommit mode or commit before running VACUUM.

This error occurs when Firebase services are temporarily unavailable due to scheduled maintenance, unexpected outages, or network connectivity issues. It's typically a transient error that resolves automatically. The fix involves verifying service status, implementing exponential backoff retry logic, checking network connectivity, and disabling/re-enabling the affected service if necessary.

The UNAUTHENTICATED error occurs when Firebase operations are attempted without valid authentication credentials. This commonly happens in Firestore, Realtime Database, and Cloud Functions when users are not signed in or security rules deny unauthenticated access.

PostgreSQL "fixing permissions on existing directory" error occurs when initdb cannot change permissions on the PGDATA directory to the required security settings. This happens due to directory ownership issues, insufficient privileges, or containerized environments with volume mount problems. Fix by ensuring the postgres user owns the directory and has appropriate permissions before running initdb.

The "messaging/mismatched-sender-id" error occurs when the Firebase Cloud Messaging (FCM) Sender ID used by your client app does not match the Sender ID associated with the Firebase project you are using to send messages. This typically happens when registration tokens were generated from a different Firebase project than the one your server is using to send push notifications.

The Firebase "unavailable" error occurs when your application cannot reach the Firebase service backend. This is typically a transient network or service issue that can be resolved with proper error handling, retry logic, and connection verification.

This Firebase Storage error occurs when a file upload or download operation is canceled before completion. The cancellation can be intentional (user clicks cancel button) or unintentional (network loss, app backgrounding, or promise rejection). Understanding when to allow cancellation versus retrying is key to handling this error gracefully.

The "ALREADY_EXISTS" error in Firebase occurs when you attempt to create a resource that has already been created. This can happen across various Firebase services including Firestore, Authentication, Cloud Storage, Cloud Functions, and the Firebase Console itself. The error indicates a conflict with an existing resource.

The "Aborted connection" error (ERROR 1152) occurs when MySQL terminates a client connection due to a fatal network issue, timeout, or resource problem. This happens when the server detects the connection is unsafe to continue, such as when packet sizes exceed limits, clients timeout during idle periods, or communication errors occur.

This error occurs when Firebase Storage cannot locate the Cloud Storage bucket configured in your Firebase app, typically due to a missing, deleted, or incorrectly specified bucket name. It prevents all file upload and download operations.

This MySQL connection error occurs when the client cannot establish a Unix socket connection to a local MySQL server. The error typically indicates that the MySQL server is not running, the socket file doesn't exist or is inaccessible, or the client is looking for the socket in the wrong location.

This error occurs when you exceed Firebase Cloud Messaging (FCM) rate limits while sending messages. Firebase enforces quota token buckets to prevent abuse and ensure fair resource allocation across all projects.

The Firebase Cloud Messaging "messaging/invalid-argument" error occurs when FCM rejects a send request due to invalid parameters, malformed tokens, oversized payloads, or incorrect message structure. This is a critical error that prevents messages from being delivered to devices.

The "not-found" error in Firebase occurs when a requested resource, document, function, or endpoint doesn't exist. This is a common error across Firebase services including Firestore, Cloud Functions, Hosting, and Authentication. The fix depends on which Firebase service is throwing the error and why the resource is missing.