All Errors

The PostgreSQL error "42P11: invalid_cursor_definition" occurs when a cursor declaration contains invalid syntax, references non-existent tables or columns, or violates cursor definition rules. Cursors in PostgreSQL allow iterative processing of query results, but improper definition prevents their creation and requires correcting the cursor declaration.

This TypeScript error occurs when React components have missing or incorrect type definitions, causing TypeScript to infer an "unknown" type instead of the expected Function Component type. It typically happens with async components, missing imports, or third-party libraries without proper TypeScript support.

The "React does not recognize the prop" warning occurs when you pass custom props to DOM elements that React doesn't recognize as valid HTML attributes. This happens because React filters out non-standard props before rendering to prevent invalid HTML attributes from appearing in the DOM.

Learn how to resolve the React Testing Library error when tests can't find forms by text, role, or accessible name. This error typically occurs due to incorrect form queries, missing accessibility attributes, or timing issues with form rendering.

This error occurs when your React code tries to access a property or method on a component instance that is undefined, often due to incorrect `this` binding in class components, accessing refs before components mount, or trying to use component methods before they're properly initialized. This is a common React error that requires proper component lifecycle management and defensive programming.

This warning occurs when an input element switches from being uncontrolled (managed by the DOM) to being controlled by React state, typically when the value prop changes from undefined to a defined value. The fix involves ensuring consistent state initialization and preventing undefined values from being passed to controlled inputs.

This error occurs when your React project uses a TypeScript version that is incompatible with your React configuration or build tools. Common triggers include outdated TypeScript versions, mismatched @types/react packages, or incompatible React TypeScript configurations in tools like Create React App or Next.js.

The PostgreSQL 08P01 protocol violation error occurs when the client and server break the agreed wire protocol during communication. Fix it by aligning driver versions, checking SSL settings, and verifying network configuration.

This TypeScript error occurs when the compiler cannot merge multiple interface declarations for the same interface name, typically due to conflicting property types, incompatible member signatures, or mismatched type parameters. The fix involves resolving type conflicts, ensuring consistent member signatures, or using module augmentation correctly.

This TypeScript error occurs when you use the --listFilesOnly compiler flag without also enabling --listFiles. The --listFilesOnly option is dependent on --listFiles and requires it to be set first. The fix involves either adding --listFiles to your command or tsconfig.json, or using the correct standalone flag --listEmittedFiles instead.

The "request_timeout: Processing request took too long" error occurs when Supabase Auth API requests exceed their maximum processing time limit. This typically happens with complex authentication flows, high server load, or network issues between your application and Supabase servers.

PostgreSQL raises HV010 when a Foreign Data Wrapper (FDW) calls its API functions in the wrong order or repeats a step that should only happen once. This violates the FDW callback sequence defined in the SQL/MED standard, indicating a bug in the FDW extension code or improper state management during query execution.

This error occurs when Elasticsearch cannot read a snapshot from a repository during restore operations. Snapshots are backups of indices and cluster state stored in repository locations like shared filesystems, S3, Azure, or GCS. The error indicates that the snapshot metadata or data files are corrupted, inaccessible, or missing from the repository.

The TypeScript compiler error "Label 'X' is not referenced" occurs when you declare a label in your code but never use it with break or continue statements. This warning helps catch potential bugs where you might have intended to write an object literal but accidentally created a label instead.

This TypeScript error occurs when using the 'in' operator in a mapped type with a non-union type. Mapped types require union types as their source to iterate over. The fix involves ensuring the type parameter is a union type or using conditional types to handle non-union cases.

This error occurs when an Elasticsearch node loses connection to the cluster, preventing communication between nodes. It typically indicates network issues, node failures, or resource constraints that disrupt cluster coordination. The disconnected node cannot participate in search, indexing, or cluster management operations.

This TypeScript warning occurs when using path mapping in tsconfig.json without enabling forceConsistentCasingInFileNames. While not a critical error, it can lead to cross-platform issues on case-insensitive file systems like Windows and macOS. Enable forceConsistentCasingInFileNames to ensure consistent file casing across all platforms.

DynamoDB returns MissingAuthenticationTokenException when AWS SDK cannot find valid authentication credentials. This error occurs when your application lacks proper AWS credentials configuration, expired tokens, or incorrect region settings.

This TypeScript error occurs when you explicitly declare a return type for a function but the function doesn't actually return a value in all code paths. The fix involves either adding return statements to satisfy the declared type or changing the return type to void.

This TypeScript error occurs when a generator function is incorrectly typed, either returning a non-Generator type or having incompatible type parameters. Generator functions in TypeScript must return a Generator<T, TReturn, TNext> type, which represents both an iterator and iterable object.