Error map
GD missing Fatal error: Uncaught Error: Call to undefined function imagecreatefromjpeg()
PHP · layer 4, Application & API
Centre: this error. First ring: errors it is linked with (12). 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.
Directly related (12)
PHP Fatal error: Uncaught Error: Call to undefined function
PHP can’t find the function you called — usually a missing extension, missing include, or namespace issue.
Class "NumberFormatter" not found / The "intl" PHP extension is required
Code uses the intl extension (NumberFormatter, Collator, IntlDateFormatter) but it isn’t installed.
PDOException: could not find driver
The PDO driver for your database (pdo_mysql, pdo_pgsql, pdo_sqlite) isn’t installed or enabled.
Azure VM: OSProvisioningTimedOut — OS Provisioning for VM did not finish in the allotted time
The VM booted but its guest agent didn’t report provisioning success in time — usually a generalisation problem with a custom ima…
Cloudflare Error 1011: Access denied (Hotlinking denied)
An image or file is being loaded from another site, and Cloudflare Hotlink Protection blocked it.
Kubernetes: ImagePullBackOff / ErrImagePull
The node can’t pull the container image — wrong name/tag, missing registry credentials, or registry unreachable.
exec /usr/local/bin/docker-entrypoint.sh: exec format error
The container tried to run a binary built for a different CPU architecture (arm64 vs amd64) — or a script with a broken shebang /…
conflict: unable to remove repository reference (must force) - container is using its referenced image
You tried to delete an image that a container — even a stopped one — still uses.
conflict: unable to delete image (cannot be forced) - image has dependent child images
Other images were built on top of this one, so Docker won’t delete it by ID.
docker: invalid reference format (repository name must be lowercase)
Docker couldn’t parse the image name — uppercase letters, spaces, an empty variable, or a misplaced option.
ERROR: function x(text) does not exist — No function matches the given name and argument types
PostgreSQL found no function with that name and argument types — wrong types, missing extension, or schema not in search_path.
PlatformNotSupportedException: System.Drawing.Common is not supported on this platform
Since .NET 6, System.Drawing.Common only works on Windows; on Linux/macOS (including Docker) it throws.
Two steps away (32)
HTTP 500 Internal Server Error
The server hit an unexpected condition — usually an unhandled exception or misconfiguration in the application.
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.
Warning: Cannot modify header information - headers already sent
You called `header()`, `setcookie()` or `session_start()` after output had already been sent to the browser.
ERROR: could not open extension control file ".../postgis.control": No such file or directory
CREATE EXTENSION failed because the extension’s files aren’t installed on the server.
ERROR: permission denied to create extension "x" — Must be superuser to create this extension.
Your role lacks the privilege to create that extension.
ITMS-90206: Invalid Bundle. The bundle at 'App.appex' contains disallowed file 'Frameworks'
An app extension (or framework) embeds its own Frameworks folder; only the main app may embed frameworks.
MySQL ERROR 1040 (08004): Too many connections
MySQL reached `max_connections` and refuses new clients.
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The MySQL JDBC driver couldn’t reach the database (or the connection dropped).
HikariPool-1 - Connection is not available, request timed out after 30000ms
The connection pool was exhausted — all connections were busy for 30 seconds.
Error: Invalid src prop on `next/image`, hostname "x" is not configured under images in your `next.config.js`
next/image refuses to optimize images from domains not allowed in next.config.js.
EC2 status check failed: Instance reachability check failed (1/2 checks passed)
AWS can reach the host, but the operating system inside the instance isn’t responding — kernel panic, full disk, broken network c…
manifest for image:tag not found: manifest unknown
The repository exists, but the tag you asked for doesn’t — it was never pushed, was deleted, or is misspelled.
HTTP 403 Forbidden
The server understood the request but refuses to authorize it — you (or the server process) are not allowed to access this resour…
Cloudflare Error 1020: Access Denied
A Cloudflare firewall/WAF custom rule blocked the request — the visitor’s IP, country, user agent or request pattern matched a bl…
no matching manifest for linux/arm64/v8 in the manifest list entries
The image has no build for your CPU architecture — typically pulling an amd64-only image on an Apple Silicon Mac or ARM server.
Kubernetes: CrashLoopBackOff
The container starts, crashes (or exits), and Kubernetes keeps restarting it with increasing back-off delays.
Kubernetes: Pod stuck in Pending — FailedScheduling: 0/3 nodes are available
The scheduler can’t find a node that satisfies the pod’s resource requests, selectors, taints or volume constraints.
ECS task stopped: CannotPullContainerError: pull image manifest has been retried ... / ref pull has been retried
The ECS task couldn’t pull its image — no network route to the registry, missing ECR permissions, or a wrong image tag.
bash: command not found
The shell can’t find an executable with that name in any directory on your PATH.
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.
exec /docker-entrypoint.sh: no such file or directory (CRLF line endings / missing interpreter)
The entrypoint file exists, but the kernel can’t run it — almost always Windows CRLF line endings in the script, or a shebang poi…
no space left on device (Docker / Linux)
The disk (or inode table) is full — Docker images, build cache, logs and volumes are common culprits.
Error response from daemon: max depth exceeded (too many image layers)
The image has more layers than the storage driver allows (127 for overlay2), usually from repeatedly committing containers or ver…
pull access denied for image, repository does not exist or may require 'docker login'
Docker couldn’t pull the image: the name or tag is wrong, the repository is private and you’re not logged in, or it doesn’t exist…
Error response from daemon: Container X is not running
You tried to exec into or interact with a container that has stopped.
docker-compose: command not found / 'compose' is not a docker command
Your system has only one of the two Compose flavours: the old docker-compose (v1) binary or the newer docker compose (v2) plugin.
Fatal error: Uncaught ArgumentCountError: Too few arguments to function foo(), 1 passed and exactly 2 expected
A function was called with fewer arguments than it requires.
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: f() missing 1 required positional argument: 'x'
A function was called without a required parameter.
Could not load file or assembly 'X, Version=…' or one of its dependencies
The runtime couldn’t find or load a referenced DLL — missing from the output, wrong version, or wrong platform (x86/x64).
Pod status InvalidImageName: couldn't parse image reference
The image field in the pod spec isn’t a valid image reference, so the kubelet can’t even try to pull it.
The framework 'Microsoft.NETCore.App', version '8.0.0' (x64) was not found. You must install or update .NET to run this application
The machine doesn’t have the .NET runtime version the app was built for (framework-dependent deployment).
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