Error map
UPDATE_ROLLBACK_FAILED CloudFormation stack in UPDATE_ROLLBACK_FAILED
AWS · layer 6, Platform & cloud
Centre: this error. First ring: errors it is linked with (11). 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 (11)
Elastic Beanstalk: Environment health has transitioned from Ok to Severe
Most instances in the Elastic Beanstalk environment are failing health checks or returning errors.
deployment "x" exceeded its progress deadline (ProgressDeadlineExceeded)
A rollout didn’t make progress within progressDeadlineSeconds (default 600) — new pods never became ready.
ARM/Bicep: DeploymentFailed / InvalidTemplateDeployment / InvalidTemplate
An Azure Resource Manager (ARM/Bicep/Terraform) deployment failed; the inner error under “details” has the real cause.
CloudFormation: No updates are to be performed
You ran an update/deploy with a template and parameters identical to what’s deployed, so there’s nothing to change.
Cloudflare Pages build: Error: Output directory "dist" not found / Failed: build output directory not found
The Pages build finished, but the folder set as “Build output directory” doesn’t exist — the framework wrote its files somewhere…
Azure Functions: No job functions found. Try making your job classes and methods public / Error indexing method
The Functions host started but couldn’t discover or index any functions — wrong project structure, extension/binding problems or…
Stack is in ROLLBACK_COMPLETE state and can not be updated
The stack’s first creation failed and rolled back; a stack in ROLLBACK_COMPLETE can only be deleted, not updated.
CloudFormation: Resource ... already exists (AlreadyExists / already exists in stack)
The template tries to create a resource with a fixed name that already exists — created manually, by another stack, or left over…
Multi-Attach error for volume: Volume is already exclusively attached to one node and can't be attached to another
A ReadWriteOnce volume (EBS, Azure Disk, PD) is still attached to another node, so the new pod on a different node can’t use it.
The Deployment is invalid: spec.selector: Invalid value: field is immutable
You tried to change a field Kubernetes doesn’t allow to change after creation — Deployment selectors, Job templates, Service clus…
Cloudflare Error 1104: A variation of this script was not found (Worker route to deleted script)
A Worker route points to a script that no longer exists (deleted, renamed or not deployed to that environment).
Two steps away (29)
HTTP 502 Bad Gateway
A proxy or gateway (Nginx, load balancer, CDN) got an invalid response — or no response — from the upstream server behind it.
HTTP 503 Service Unavailable
The server is temporarily unable to handle the request — overloaded, in maintenance, or has no healthy backends.
SES MessageRejected: Email address is not verified. The following identities failed the check in region
SES refused to send because the From address/domain isn’t verified — or the account is still in the SES sandbox, where recipients…
Kubernetes: CrashLoopBackOff
The container starts, crashes (or exits), and Kubernetes keeps restarting it with increasing back-off delays.
Kubernetes: ImagePullBackOff / ErrImagePull
The node can’t pull the container image — wrong name/tag, missing registry credentials, or registry unreachable.
Readiness probe failed: HTTP probe failed with statuscode: 503 / connect: connection refused
The container is running, but its readiness check fails, so the pod is marked not ready and removed from Service endpoints.
Azure: SkuNotAvailable / QuotaExceeded when creating a VM or resource
The VM size isn’t offered in that region/zone for your subscription, or you’ve hit the vCPU quota.
ResourceGroupNotFound: Resource group 'x' could not be found
The resource group doesn’t exist in the subscription the command or deployment is using.
ResourceNotFound: The Resource 'Microsoft.X/...' under resource group 'y' was not found
The specific resource doesn’t exist in that resource group/subscription — wrong name, group or subscription, or it was deleted.
! [remote rejected] main -> main (shallow update not allowed)
You pushed from a shallow clone to a remote that doesn’t accept shallow history.
remote: Permission to owner/repo.git denied to github-actions[bot]. fatal: unable to access … The requested URL returned error: 403
A GitHub Actions workflow tried to push but the GITHUB_TOKEN doesn’t have write permission.
npm ERR! `npm ci` can only install packages when your package.json and package-lock.json are in sync
package-lock.json doesn’t match package.json, so npm ci refuses to install.
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…
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 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.
Azure App Service: ":( Application Error" / container didn’t respond to HTTP pings
App Service started your app but it crashed or never listened on the expected port.
Azure Functions: Value cannot be null. (Parameter 'connectionString') / Missing value for AzureWebJobsStorage
A Functions app setting or binding connection string is missing — most often AzureWebJobsStorage locally (local.settings.json) or…
TypeError: 'str' object is not callable
You used parentheses on something that isn’t a function — often a variable shadowing a built-in.
API Error: Resource already exists (ALREADY_EXISTS / resource_already_exists / 409)
The create request was refused because an object with the same unique identity — name, email, external ID — already exists.
AccessDeniedException: User: arn:aws:iam::... is not authorized to perform: service:Action on resource: ...
The IAM user or role making the call has no permission for that action on that resource — the message names both.
Azure Storage: AuthorizationPermissionMismatch (403) — This request is not authorized to perform this operation using this permission
You’re accessing blob/queue data with Microsoft Entra ID, but the identity has only management roles (Owner/Contributor) — not a…
QuotaExceededError: Failed to execute 'setItem' on 'Storage': Setting the value exceeded the quota
localStorage/sessionStorage is full (about 5 MB per origin) or storage is disabled.
MySQL ERROR 126 (HY000): Incorrect key file for table; try to repair it
MySQL can’t use a table’s index file — usually a full tmp disk during a query, or MyISAM corruption.
Error from server (AlreadyExists): ... already exists
kubectl create tried to make an object whose name is already taken in that namespace.
strict decoding error: unknown field "spec.template.spec.containers[0].ports[0].protocl"
The manifest contains a field the API schema doesn’t know — a typo, wrong indentation, or a field from another API version.
Operation cannot be fulfilled on deployments.apps "x": the object has been modified; please apply your changes to the latest version and try again
Optimistic-concurrency conflict: the object changed (new resourceVersion) between when you read it and when you tried to update i…
Cloudflare Error 1019: Compute server error (Workers)
A Cloudflare Worker routed the request to a loop or hit an internal compute error.
Cloudflare Error 1025: Please check back later (Workers request limit)
The site’s Cloudflare Workers plan exceeded its daily request limit (free plan: 100,000 requests/day).
Cloudflare Error 1101: Worker threw exception
The Cloudflare Worker serving this route threw an uncaught JavaScript exception.
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