Error map

externally-managed-environment error: externally-managed-environment

Python · layer 4, Application & API

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Centre: this error. First ring: errors it is linked with (7). 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 3 · Edge & web server 4 · Application & API 6 · Platform & cloud 7 · Build & delivery
externally-managed-environment — error: externally-managed-environment (Python)externally-…ModuleNotFoundError — ModuleNotFoundError: No module named 'x' (Python)ModuleNotFoundErrorConnectionRefusedError — ConnectionRefusedError: [Errno 111] Connection refused (Python)ConnectionRefusedEr…Failed building wheel — error: subprocess-exited-with-error / Failed building wheel for x (Python)Failed building whe…AttributeError — AttributeError: 'X' object has no attribute 'y' (Python)AttributeErrorpip no matching distribution — ERROR: Could not find a version that satisfies the requirement x (from versions: none) (Python)pip no matching dis…never awaited — RuntimeWarning: coroutine 'fetch' was never awaited (Python)never awaitedEvent loop is closed — RuntimeError: Event loop is closed (Python)Event loop is closedMODULE_NOT_FOUND — Error: Cannot find module 'x' (MODULE_NOT_FOUND) (Node.js)MODULE_NOT_FOUNDClass not found — PHP Fatal error: Uncaught Error: Class "X" not found (PHP)Class not foundImportError — ImportError: cannot import name 'x' from 'y' (Python)ImportErrorECONNREFUSED — Error: connect ECONNREFUSED 127.0.0.1:5432 (Node.js)ECONNREFUSED521 — Cloudflare Error 521: Web Server Is Down (Cloudflare)521ETIMEDOUT — API Request Timed Out (ETIMEDOUT / ReadTimeout / timeout of 30000ms exceeded) (API)ETIMEDOUTgyp ERR! — gyp ERR! build error / node-gyp rebuild failed (npm)gyp ERR!COPY failed — COPY failed: file not found in build context / "/app/x": not found (Docker)COPY failedGradle wrapper main class — Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain (Java)Gradle wrapper main…TypeError: not a function — TypeError: x is not a function (JavaScript)TypeError: not a fu…KeyError — KeyError: 'x' (Python)KeyErrorTypeError: NoneType — TypeError: 'NoneType' object is not subscriptable (Python)TypeError: NoneTypeCould not resolve — Gradle: Could not resolve all files for configuration / Could not resolve dependency (Android)Could not resolveE404 — npm ERR! code E404 — 404 Not Found: package@version is not in this registry (npm)E404No module named distutils — ModuleNotFoundError: No module named 'distutils' (Python)No module named dis…UnhandledPromiseRejection — Node.js: [UnhandledPromiseRejection] — This error originated either by throwing inside of an async function without a catch block (Node.js)UnhandledPromiseRej…await outside async — SyntaxError: await is only valid in async functions and the top level bodies of modules (JavaScript)await outside asyncAbortError — AbortError: The user aborted a request. / signal is aborted without reason (JavaScript)AbortErrorbody already used — TypeError: Failed to execute 'json' on 'Response': body stream already read (JavaScript)body already usedTypeError arguments — TypeError: f() takes 1 positional argument but 2 were given (Python)TypeError argumentsTypeError missing arg — TypeError: f() missing 1 required positional argument: 'x' (Python)TypeError missing a…

Directly related (7)

ModuleNotFoundErrorPython

ModuleNotFoundError: No module named 'x'

Python can’t find the module you import — it isn’t installed in the interpreter/virtualenv that’s running, or the import path is…

ConnectionRefusedErrorPython

ConnectionRefusedError: [Errno 111] Connection refused

Nothing is listening on the host/port Python tried to connect to.

Failed building wheelPython

error: subprocess-exited-with-error / Failed building wheel for x

pip had to compile a package from source and the build failed — missing compiler, headers or system libraries.

AttributeErrorPython

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

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

pip no matching distributionPython

ERROR: Could not find a version that satisfies the requirement x (from versions: none)

pip found no installable version of the package for your Python version, OS or index.

never awaitedPython

RuntimeWarning: coroutine 'fetch' was never awaited

An async function was called without await, so it never ran.

Event loop is closedPython

RuntimeError: Event loop is closed

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

Two steps away (21)

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.

Class not foundPHP

PHP Fatal error: Uncaught Error: Class "X" not found

PHP couldn’t load the class — autoloading failed, the namespace is wrong, or the dependency isn’t installed.

ImportErrorPython

ImportError: cannot import name 'x' from 'y'

The module was found, but the name you’re importing from it doesn’t exist — usually a version change or a circular import.

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.

521Cloudflare

Cloudflare Error 521: Web Server Is Down

Cloudflare couldn’t connect to your origin — the connection was refused.

ETIMEDOUTAPI

API Request Timed Out (ETIMEDOUT / ReadTimeout / timeout of 30000ms exceeded)

The client gave up waiting — either for the connection to open or for the response to arrive.

gyp ERR!npm

gyp ERR! build error / node-gyp rebuild failed

A dependency with native C/C++ code couldn’t compile — missing build tools, Python, or an unsupported Node version.

COPY failedDocker

COPY failed: file not found in build context / "/app/x": not found

The Dockerfile COPY refers to a path outside the build context, excluded by .dockerignore, or relative to the wrong directory.

Gradle wrapper main classJava

Error: Could not find or load main class org.gradle.wrapper.GradleWrapperMain

The Gradle wrapper JAR (gradle/wrapper/gradle-wrapper.jar) is missing or corrupt.

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…).

KeyErrorPython

KeyError: 'x'

You accessed a dictionary key that doesn’t exist.

TypeError: NoneTypePython

TypeError: 'NoneType' object is not subscriptable

You used `[ ]` on a value that is `None` — typically a function that returned nothing.

Could not resolveAndroid

Gradle: Could not resolve all files for configuration / Could not resolve dependency

Gradle couldn’t download a dependency — wrong coordinates/version, missing repository, offline mode, or network/proxy issues.

E404npm

npm ERR! code E404 — 404 Not Found: package@version is not in this registry

npm asked the registry for a package (or version) that doesn’t exist there — a typo, a private/scoped package without auth, or th…

No module named distutilsPython

ModuleNotFoundError: No module named 'distutils'

Python 3.12 removed distutils; old packages or tools that import it fail.

UnhandledPromiseRejectionNode.js

Node.js: [UnhandledPromiseRejection] — This error originated either by throwing inside of an async function without a catch block

A promise rejected and nothing handled it; since Node 15 this crashes the process.

await outside asyncJavaScript

SyntaxError: await is only valid in async functions and the top level bodies of modules

await was used inside a function that isn’t async (or in a classic, non-module script).

AbortErrorJavaScript

AbortError: The user aborted a request. / signal is aborted without reason

A fetch was cancelled through an AbortController (or the browser cancelled it).

body already usedJavaScript

TypeError: Failed to execute 'json' on 'Response': body stream already read

A fetch Response body was consumed twice (e.g. calling .text() then .json()).

TypeError argumentsPython

TypeError: f() takes 1 positional argument but 2 were given

A function was called with more positional arguments than it accepts — very often a method missing `self`.

TypeError missing argPython

TypeError: f() missing 1 required positional argument: 'x'

A function was called without a required parameter.

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