All Errors

Redis returns `NOPROTO sorry, this protocol version is not supported` when a client tries to negotiate an unsupported protocol version during the HELLO handshake, typically when requesting RESP3 on a server that only supports RESP2. Modern clients auto-negotiate to RESP3 by default, but older Redis versions or disabled RESP3 configurations reject this upgrade. This guide explains the protocol mismatch, common scenarios, and how to downgrade or enable the correct protocol version.

Prisma error P2026 occurs when your query uses a database feature that is not supported by your current database provider. Common examples include full-text search on SQLite, certain index types on MySQL, or advanced constraints not available in all databases.

The 39P02 error occurs when a set-returning function (SRF) or table function violates PostgreSQL's internal protocol requirements, typically when the function doesn't properly implement the expected return mode or fails to follow the correct sequence for returning multiple rows.

Heroku PostgreSQL plans have connection limits (20 for Essential, 120+ for Standard). When your application opens too many connections without reusing them, you hit this limit. Fix it by implementing connection pooling with pgBouncer, reducing your connection pool size, or upgrading your plan.

The "Cannot find module 'mongoose'" error occurs when Node.js cannot locate the mongoose package in your project. This typically happens when mongoose is not installed, was installed in the wrong location, or when the node_modules directory is missing or corrupted. The error prevents your application from importing mongoose for MongoDB operations.

This error occurs when you attempt to calculate the logarithm of zero, a negative number, or provide an invalid base argument to PostgreSQL logarithmic functions like LOG(), LN(), or LOG10(). Logarithms are only mathematically defined for positive numbers.

PostgreSQL cannot write new data because the underlying filesystem has exhausted its storage capacity. Resolve this by freeing disk space, cleaning up temporary files, or increasing available storage.

PostgreSQL error 2F003 occurs when a SQL routine (function, procedure, or trigger) attempts to execute a statement that is prohibited in its current context, such as transaction control commands (COMMIT, ROLLBACK) or DDL statements within restricted function types.

PostgreSQL enforces a 100-argument limit on functions. This error occurs when calling functions like json_build_object() with more than 100 arguments, or when passing too many parameters to RAISE statements in PL/pgSQL. Solutions include using array-based approaches or composite data types.

This error occurs when attempting to create or access an Elasticsearch index with uppercase letters in its name. Elasticsearch enforces a strict lowercase naming convention for index names to ensure consistency and avoid filesystem conflicts.

The PostgreSQL COPY command rejects NULL representation strings that contain newline or carriage return characters to prevent data parsing errors. Use the default \N for text format or empty string for CSV format instead.

This error occurs when attempting to access Supabase Storage without proper Row-Level Security (RLS) policies or valid authentication. The fix involves creating appropriate RLS policies on the storage.objects table and ensuring your client sends a valid JWT token.

PostgreSQL error 27000 occurs when a trigger function attempts to modify data in a way that violates SQL standards or PostgreSQL trigger rules. This typically happens when a trigger tries to modify the same table that triggered it, creating recursion or constraint violations.

This Prisma error occurs when your schema references a column that doesn't exist in your database. It typically indicates a mismatch between your Prisma schema and the actual database structure, often caused by failed migrations, manual database changes, or schema drift.

This error occurs when attempting to grant role privileges or permissions using a user account that lacks the necessary ADMIN OPTION on the role being granted, or when using GRANTED BY with insufficient privileges.

This Supabase Authentication error occurs when you attempt to use one-time password (OTP) authentication without enabling it in your project settings. The fix requires enabling email or phone OTP providers in the Supabase dashboard and properly configuring your authentication flow.

The Firebase CLI cannot find emulator configuration in your firebase.json file. This happens when the emulators section is missing or incorrectly formatted, preventing local development.

PostgreSQL configuration limit exceeded error (54000) occurs when a predefined system limit is surpassed, such as maximum table columns, function arguments, or query complexity. Fix by refactoring your schema or query design rather than adjusting compiled limits.

This error occurs when an Elasticsearch node cannot properly deserialize data received from another node in the cluster. The most common causes are version mismatches between nodes, incompatible Java versions, or corrupted data during network transmission.

PostgreSQL forcibly closes connections that remain idle within an active transaction for too long. Adjust the timeout setting, optimize application code to minimize transaction scope, or disable it for maintenance operations.