Error map

maxBuffer exceeded RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded

Node.js · layer 4, Application & API

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Centre: this error. First ring: errors it is linked with (9). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.

1 · On your device 4 · Application & API 6 · Platform & cloud 7 · Build & delivery
maxBuffer exceeded — RangeError [ERR_CHILD_PROCESS_STDIO_MAXBUFFER]: stdout maxBuffer length exceeded (Node.js)maxBuffer e…MODULE_NOT_FOUND — Error: Cannot find module 'x' (MODULE_NOT_FOUND) (Node.js)MODULE_NOT_FOUNDOSError Errno 98 — OSError: [Errno 98] Address already in use (Python)OSError Errno 98SyntaxError import — SyntaxError: Cannot use import statement outside a module (Node.js)SyntaxError importEADDRINUSE — Error: listen EADDRINUSE: address already in use :::3000 (Node.js)EADDRINUSEfork: retry: Resource temporarily unavailable — fork: retry: Resource temporarily unavailable (process/thread limit) (Linux)fork: retry: Resour…KeyboardInterrupt — KeyboardInterrupt (script stopped with Ctrl+C) / ^C traceback (Python)KeyboardInterruptEPIPE — Error: write EPIPE (Node.js)EPIPEspawn EACCES — Error: spawn EACCES (Node.js)spawn EACCESCannot allocate memory — fork: Cannot allocate memory / ENOMEM (Linux)Cannot allocate mem…ERESOLVE — npm ERR! code ERESOLVE — unable to resolve dependency tree (npm)ERESOLVEENOENT — Error: ENOENT: no such file or directory (Node.js)ENOENTTypeError: not a function — TypeError: x is not a function (JavaScript)TypeError: not a fu…port is already allocated — Docker: Bind for 0.0.0.0:80 failed: port is already allocated (Docker)port is already all…Port 8080 in use — Web server failed to start. Port 8080 was already in use. (Java)Port 8080 in uselisten EACCES — Error: listen EACCES: permission denied 0.0.0.0:80 (Node.js)listen EACCESReferenceError — ReferenceError: x is not defined (JavaScript)ReferenceErrorERR_REQUIRE_ESM — Error [ERR_REQUIRE_ESM]: require() of ES Module not supported (Node.js)ERR_REQUIRE_ESMERR_HTTP_HEADERS_SENT — Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client (Node.js)ERR_HTTP_HEADERS_SE…ECONNREFUSED — Error: connect ECONNREFUSED 127.0.0.1:5432 (Node.js)ECONNREFUSEDELIFECYCLE — npm ERR! code ELIFECYCLE / Command failed with exit code 1 (npm)ELIFECYCLEUnhandled 'error' event — Error: Unhandled 'error' event (events.js / node:events) (Node.js)Unhandled 'error' e…EMFILE — Too many open files (EMFILE) (Linux)EMFILERequestEntityTooLargeException — Lambda: Request must be smaller than 6291456 bytes for the InvokeFunction operation (RequestEntityTooLargeException) (AWS)RequestEntityTooLar…Unzipped size must be smaller than 262144000 bytes — Lambda: Unzipped size must be smaller than 262144000 bytes (AWS)Unzipped size must …AttributeError — AttributeError: 'X' object has no attribute 'y' (Python)AttributeErrorEvent loop is closed — RuntimeError: Event loop is closed (Python)Event loop is closedStream closed — java.io.IOException: Stream closed (Java)Stream closedERR_STREAM_PREMATURE_CLOSE — Error [ERR_STREAM_PREMATURE_CLOSE]: Premature close (Node.js)ERR_STREAM_PREMATUR…EACCES — Linux: Permission denied (Linux)EACCESEPERM — Error: EPERM: operation not permitted, rename / unlink (Node.js)EPERMPERMISSION_DENIED — PERMISSION_DENIED: The caller does not have permission (insufficient permissions) (Authentication)PERMISSION_DENIEDOOMKilled — Kubernetes: OOMKilled (exit code 137) (Kubernetes)OOMKilledOutOfMemoryError — java.lang.OutOfMemoryError: Java heap space (Java)OutOfMemoryErrorMEMORY_MANAGEMENT — Blue Screen: MEMORY_MANAGEMENT (Stop code 0x0000001A) (Windows)MEMORY_MANAGEMENT

Directly related (9)

MODULE_NOT_FOUNDNode.js

Error: Cannot find module 'x' (MODULE_NOT_FOUND)

Node can’t resolve the module path — the package isn’t installed, or a relative path/extension is wrong.

OSError Errno 98Python

OSError: [Errno 98] Address already in use

The port your server wants to bind is already taken by another process.

SyntaxError importNode.js

SyntaxError: Cannot use import statement outside a module

An `import` statement ran in a context treated as CommonJS (Node without "type": "module", a browser script without type="module"…

EADDRINUSENode.js

Error: listen EADDRINUSE: address already in use :::3000

Another process is already listening on that port.

fork: retry: Resource temporarily unavailableLinux

fork: retry: Resource temporarily unavailable (process/thread limit)

The user or container hit its maximum number of processes/threads (ulimit -u, pids cgroup), so new processes can’t be created.

KeyboardInterruptPython

KeyboardInterrupt (script stopped with Ctrl+C) / ^C traceback

The script was interrupted (Ctrl+C, SIGINT, or a container stop), producing a KeyboardInterrupt traceback.

EPIPENode.js

Error: write EPIPE

Node wrote to a pipe or socket whose other end was already closed.

spawn EACCESNode.js

Error: spawn EACCES

Node tried to execute a file that isn’t executable (missing +x permission) or isn’t a program.

Cannot allocate memoryLinux

fork: Cannot allocate memory / ENOMEM

The kernel refused a memory allocation — RAM and swap are exhausted, or overcommit/cgroup limits block it.

Two steps away (25)

ERESOLVEnpm

npm ERR! code ERESOLVE — unable to resolve dependency tree

npm 7+ found conflicting peer dependency requirements and refuses to install a broken tree.

ENOENTNode.js

Error: ENOENT: no such file or directory

A file or directory the program tried to open doesn’t exist at that path.

TypeError: not a functionJavaScript

TypeError: x is not a function

You called something as a function, but its value is not a function (it’s undefined, a string, an object…).

port is already allocatedDocker

Docker: Bind for 0.0.0.0:80 failed: port is already allocated

Another container or host process already publishes that host port.

Port 8080 in useJava

Web server failed to start. Port 8080 was already in use.

Spring Boot couldn’t bind its embedded server port because another process uses it.

listen EACCESNode.js

Error: listen EACCES: permission denied 0.0.0.0:80

Node isn’t allowed to bind that port — ports below 1024 need root on Linux/macOS, and some Windows ports are reserved.

ReferenceErrorJavaScript

ReferenceError: x is not defined

Code refers to a variable or function name that doesn’t exist in the current scope.

ERR_REQUIRE_ESMNode.js

Error [ERR_REQUIRE_ESM]: require() of ES Module not supported

CommonJS code used `require()` on a package that is ES-module-only (node-fetch 3, chalk 5, nanoid 4, got 12…).

ERR_HTTP_HEADERS_SENTNode.js

Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client

An Express/Node handler tried to send a second response (or set headers) after one was already sent.

ECONNREFUSEDNode.js

Error: connect ECONNREFUSED 127.0.0.1:5432

Nothing is listening at that host:port — the target service is down or you’re connecting to the wrong address.

ELIFECYCLEnpm

npm ERR! code ELIFECYCLE / Command failed with exit code 1

An npm script (build, start, test, postinstall) exited with an error. ELIFECYCLE is only the wrapper — the real error is printed…

Unhandled 'error' eventNode.js

Error: Unhandled 'error' event (events.js / node:events)

An EventEmitter (stream, socket, child process, server) emitted 'error' and nothing listened for it, so Node crashed.

EMFILELinux

Too many open files (EMFILE)

The process hit its file-descriptor limit — sockets, files and pipes all count.

RequestEntityTooLargeExceptionAWS

Lambda: Request must be smaller than 6291456 bytes for the InvokeFunction operation (RequestEntityTooLargeException)

The event payload (or response) is over Lambda’s 6 MB synchronous limit (256 KB for async invocations).

Unzipped size must be smaller than 262144000 bytesAWS

Lambda: Unzipped size must be smaller than 262144000 bytes

The function code plus layers exceed Lambda’s 250 MB unzipped limit for zip deployments.

AttributeErrorPython

AttributeError: 'X' object has no attribute 'y'

You accessed an attribute or method that doesn’t exist on that object type.

Event loop is closedPython

RuntimeError: Event loop is closed

Async code tried to use an event loop that has already been shut down.

Stream closedJava

java.io.IOException: Stream closed

Code read or wrote a stream after it was closed — often by a try-with-resources block or a wrapper closing the underlying stream.

ERR_STREAM_PREMATURE_CLOSENode.js

Error [ERR_STREAM_PREMATURE_CLOSE]: Premature close

A stream ended or was destroyed before it finished — often a client disconnect or upstream aborting a download.

EACCESLinux

Linux: Permission denied

Your user (or the service user) lacks read/write/execute permission on a file, directory or one of its parents.

EPERMNode.js

Error: EPERM: operation not permitted, rename / unlink

The OS refused a file operation — on Windows usually because another process (antivirus, editor, indexer) has the file locked.

PERMISSION_DENIEDAuthentication

PERMISSION_DENIED: The caller does not have permission (insufficient permissions)

You are authenticated, but your identity isn’t allowed to perform this action on this resource.

OOMKilledKubernetes

Kubernetes: OOMKilled (exit code 137)

The container used more memory than its limit, and the kernel killed it.

OutOfMemoryErrorJava

java.lang.OutOfMemoryError: Java heap space

The JVM ran out of heap memory and garbage collection couldn’t free enough.

MEMORY_MANAGEMENTWindows

Blue Screen: MEMORY_MANAGEMENT (Stop code 0x0000001A)

Windows detected a severe memory-management error — commonly faulty RAM, unstable memory settings or a bad driver.

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