All Errors

This error occurs when an HTTP/2 connection violates flow control rules by sending more data than the peer is willing to accept. Flow control in HTTP/2 prevents overwhelming the receiver by using a window-based system. The error happens when the sender exceeds the advertised window size or improperly manages window updates, causing the protocol to abort the connection.

This error occurs when apt detects that a package dependency requires a specific minimum version, but apt is attempting to install a different (usually lower) version. It indicates a version mismatch between what a package needs and what is available to install, preventing the installation from proceeding.

This error occurs when Node.js HTTP/2 session receives a SETTINGS frame that does not comply with HTTP/2 protocol specifications. The settings frame may contain invalid parameter IDs, out-of-range values, or malformed data that the HTTP/2 parser cannot process.

Express session middleware fails when the session store is not properly initialized or configured. This error occurs when express-session cannot establish a connection to the session storage backend (Memory, Redis, MongoDB, etc.). The application needs a compatible session store middleware to persist user sessions across requests.

This error occurs when Express cannot locate the view engine you specified in your application. It typically happens when the view engine package is not installed, the engine name is misspelled, or the engine is not properly registered.

This SSH error occurs when a user's group membership does not match the AllowGroups directive in sshd_config. The fix involves adding the user's group to the allowed groups list or verifying group membership.

This error occurs when sshd_config restricts SSH login to specific users via the AllowUsers directive. Fix it by adding your username to the AllowUsers list in sshd_config and restarting the SSH service.

This error occurs when attempting to sort by a field that has no mapping defined in the Elasticsearch index. The field either doesn't exist, hasn't been indexed yet, or is defined as a text type which cannot be used for sorting.

The PostgreSQL "function does not exist" error (SQLSTATE 42883) occurs when a function call cannot be matched to any defined function with the same name and argument types. This is commonly caused by mismatched data types, missing extensions, incorrect schema qualification, or typos in the function name. PostgreSQL requires exact matches on both function name and parameter types.

The 42P17 error occurs when PostgreSQL detects an invalid database object definition, most commonly when creating generated columns with non-immutable expressions or defining objects with conflicting constraints.

SSH shows "The agent has no identities" when ssh-agent is running but has no keys loaded. Add your private key to the agent using ssh-add to resolve this connection issue.

This error occurs when a Firestore transaction or batched write operation exceeds the maximum request size of 10 MiB, typically due to writing too many documents or large index updates in a single operation.

PostgreSQL error 23000 (Integrity Constraint Violation) occurs when an INSERT, UPDATE, or DELETE operation breaks a primary key, foreign key, unique, or check constraint. This is a parent error class that includes more specific violations like 23505 (unique violation) and 23503 (foreign key violation). Fixing requires identifying the specific constraint, validating referenced data, or using ON CONFLICT clauses to handle conflicts gracefully.

This error occurs when attempting to link an OAuth identity that is already associated with another user account in Supabase Auth, commonly when converting anonymous users to verified accounts.

SSH client and server have incompatible encryption algorithms (ciphers). Modern SSH clients disable weak legacy ciphers by default, causing connections to older servers to fail. Fix by enabling legacy ciphers in your client configuration.

This error occurs when Elasticsearch attempts to execute an ingest pipeline but no nodes in the cluster have the ingest role enabled. The cluster needs at least one ingest node to process pipeline requests.

This error occurs when you reference a schema that does not exist in the current PostgreSQL database. It commonly happens when executing queries, creating objects, or setting search paths that reference non-existent schemas. The solution involves verifying the schema exists or creating it before use.

This error occurs when attempting to sign up a user with an email address already registered in Supabase Auth. Behavior varies depending on email confirmation settings.

This Foreign Data Wrapper (FDW) error occurs when an option value provided to CREATE FOREIGN TABLE or ALTER FOREIGN TABLE is invalid or incompatible with the FDW implementation.

This error occurs when configuring an OIDC or OAuth provider in Firebase Authentication with invalid responseType settings. Either multiple response types are set to true, or none are enabled when exactly one must be.