Node.js error codes

An argument of the wrong type was passed to a Node.js API.

An invalid or unsupported value was passed for a given argument.

An invalid asyncId or triggerAsyncId was passed using AsyncHooks. An id less than -1 should never happen.

A swap was performed on a Buffer but its size was not compatible with the operation.

Invalid characters were detected in headers.

A cursor on a given stream cannot be moved to a specified row without a specified column.

A file descriptor ('fd') was not valid (e.g. it was a negative value).

A file descriptor ('fd') type was not valid.

A Node.js API that consumes file: URLs (such as certain functions in the fs module) encountered a file URL with an incompatible host. This situation can only occur on Unix-like systems where only localhost or an empty host is supported.

A Node.js API that consumes file: URLs (such as certain functions in the fs module) encountered a file URL with an incompatible path. The exact semantics for determining whether a path can be used is platform-dependent. The thrown error object includes an input property that contains the URL object of the invalid file: URL.

An attempt was made to send an unsupported "handle" over an IPC communication channel to a child process. See subprocess.send() and process.send() for more information.

An invalid HTTP token was supplied.

An IP address is not valid.

The syntax of a MIME is not valid.

An attempt was made to load a module that does not exist or was otherwise not valid.

The imported module string is an invalid URL, package name, or package subpath specifier.

An error occurred while setting an invalid attribute on the property of an object.

An invalid or unexpected value was passed in an options object.

An invalid or unknown file encoding was passed.

An invalid package.json file failed parsing.

The package.json "exports" field contains an invalid target mapping value for the attempted module resolution.

While using the Performance Timing API (perf_hooks), a performance mark is invalid.

An invalid options.protocol was passed to http.request().

Both breakEvalOnSigint and eval options were set in the REPL config, which is not supported.

The input may not be used in the REPL. The conditions under which this error is used are described in the REPL documentation.

Thrown in case a function option does not provide a valid value for one of its returned object properties on execution.

Thrown in case a function option does not provide an expected value type for one of its returned object properties on execution.

Thrown in case a function option does not return an expected value type on execution, such as when a function is expected to return a promise.

Indicates that an operation cannot be completed due to an invalid state. For instance, an object may have already been destroyed, or may be performing another operation.

A Buffer, TypedArray, DataView, or string was provided as stdio input to an asynchronous fork. See the documentation for the child_process module for more information.

A Node.js API function was called with an incompatible this value.

An invalid transfer object was passed to postMessage().

An element in the iterable provided to the WHATWG URLSearchParams constructor did not represent a [name, value] tuple – that is, if an element is not iterable, or does not consist of exactly two elements.

The provided TypeScript syntax is not valid.

An invalid URI was passed.

An invalid URL was passed to the WHATWG URL constructor or the legacy url.parse() to be parsed. The thrown error object typically has an additional property 'input' that contains the URL that failed to parse.

An invalid URLPattern was passed to the WHATWG URLPattern constructor to be parsed.

An attempt was made to use a URL of an incompatible scheme (protocol) for a specific purpose. It is only used in the WHATWG URL API support in the fs module (which only accepts URLs with 'file' scheme), but may be used in other Node.js APIs as well in the future.

An attempt was made to use an IPC communication channel that was already closed.

An attempt was made to disconnect an IPC communication channel that was already disconnected. See the documentation for the child_process module for more information.