All Errors

This error occurs when a network request does not complete within the specified time limit and the socket connection times out. It commonly happens with HTTP clients when the server takes too long to respond or network connectivity issues prevent timely communication.

This TypeScript error occurs when a non-abstract (concrete) class extends an abstract base class but fails to implement all abstract members. All classes that extend abstract classes must either implement every abstract method and property, or be declared abstract themselves.

This error occurs when Docker Desktop on Windows is set to run Windows containers, but you're trying to pull or run a Linux-based image. Switching Docker Desktop to Linux containers mode will resolve the issue.

This error occurs when Docker encounters an unrecognized instruction in your Dockerfile, typically due to a typo like 'RRUN' instead of 'RUN'. Fixing the typo in your Dockerfile will resolve the issue immediately.

This error occurs when you try to access a property or function from a module that was not properly exported, or when module.exports is assigned inside a callback. It commonly happens when mixing CommonJS and ES Module syntax or importing non-existent named exports.

This error occurs when attempting to access a property on a variable that is undefined or null. It is one of the most common runtime errors in Node.js and JavaScript, typically caused by accessing data before it is initialized or when API responses are missing expected fields.

This error occurs when you try to start a Node.js server on a port that is already occupied by another process. The system refuses to bind to the port because another application is already listening on it.

This error occurs when a TCP connection is forcibly closed by the remote server or network device before your Node.js application finishes reading data. The connection is abruptly terminated by sending a TCP RST packet instead of a graceful close.

This error occurs when the crypto.createHmac() method receives a key argument that is not a valid type. Node.js requires the HMAC key to be a string, Buffer, TypedArray, DataView, or KeyObject, and passing undefined, null, or other invalid types will cause this error.

This system-level error occurs when attempting to initiate a network operation (like a socket connection) that is already in progress. It commonly happens when reconnecting sockets too quickly or trying to bind resources that are already being accessed.

This error occurs when Node.js attempts to establish a TCP connection but the operating system cannot find a network route to the destination. The connection fails because no routing path exists between your system and the target host.

This error occurs when you attempt to call a value as a function, but that value is not actually a function. It commonly happens due to typos in function names, calling properties that hold non-function values, or issues with module loading and scope.

This Node.js error occurs when the operating system blocks a file system operation due to insufficient permissions, file locking by another process, or security restrictions. Common scenarios include writing to protected directories, accessing files opened by other applications, or operating on files locked by antivirus software.

This error occurs when Node.js file system operations attempt to read, write, or manipulate a directory as if it were a regular file. The operation expects a file path but receives a directory path instead.

This error occurs when React tries to access the "props" property on a null or undefined object, typically due to uninitialized state, missing null checks, or accessing components after they've unmounted.

This error occurs when using latin1 (ISO-8859-1) encoding in Node.js Buffer operations on versions that don't support it. The fix is to either upgrade Node.js to v6.4.0 or later, or use an alternative encoding method.

Node.js throws ERR_UNKNOWN_FILE_EXTENSION when trying to import or execute files with unrecognized extensions. This commonly occurs with TypeScript files (.ts), Python files (.py), or other non-JavaScript file types that Node.js cannot natively process.

This fatal error occurs when a Node.js process attempts to allocate more memory than the available heap size allows. The process crashes because it cannot continue execution without the requested memory allocation.

The ENODEV error occurs when Node.js attempts to read from a device that doesn't exist or is unavailable. This commonly happens with hardware devices like Bluetooth adapters, TTY devices, or when performing device-specific operations on unsupported file descriptors.

This error occurs when Node.js attempts to write data to a stream, pipe, or socket that has already been closed by the receiving end. It's a POSIX error indicating the connection was terminated before all data could be transmitted.