Use this consolidated error code index to navigate HTTP, AWS, Azure, and GCP failures from a single technical library. Each entry links to source-backed diagnosis, root-cause patterns, and production-focused remediation steps. Start broad, then drill into provider pages, operational categories, compare guides, or incident playbooks.
62 error codes available
100 error codes available
63 error codes available
22 error codes available
Showing 61-75 of 247.|Page 5 of 17
HTTP 510 Not Extended is an obsolete status code from an experimental extension model and should not be emitted by modern HTTP APIs.
HTTP 511 Network Authentication Required means the client must authenticate to gain network access, often through a captive portal.
AWS AccessDenied usually means AWS authenticated the caller, then denied a specific action on a specific ARN after evaluating IAM, SCP, trust, boundary, session...
AWS InvalidParameterValue means the request reached AWS, but one parameter value violates the service contract, allowed range, naming rule, resource format, or...
Amazon S3 BucketAlreadyExists means a CreateBucket request used a bucket name that is already allocated in the global S3 namespace, usually by another AWS accou...
Amazon S3 NoSuchBucket means the request targeted a bucket name that S3 cannot resolve as an existing bucket.
Amazon S3 NoSuchKey means the bucket exists, but the exact object key requested does not resolve to a current object.
AWS AuthFailure indicates that the request could not be authenticated. It occurs when provided credentials (Access Keys) are invalid, malformed, or inactive. Un...
AWS InvalidAccessKeyId (Invalid Access Key Id) means the AWS access key ID in the request does not exist in AWS records. In Amazon S3, this error returns HTTP 4...
AWS InvalidSignatureException usually means the request signature or signing envelope is invalid for the target service. In many services this points to malform...
AWS SignatureDoesNotMatch (Signature Does Not Match) means AWS recalculated the SigV4 signature and it does not match the signature in the request. In Amazon S3...
AWS ThrottlingException means the service rejected request rate or concurrency beyond allowed limits. Depending on service and protocol, this commonly returns H...
AWS ResourceNotFoundException means the target resource cannot be resolved by that service in the current account, region, partition, endpoint, lifecycle state,...
AWS InvalidParameter means the request is syntactically readable, but one or more supplied parameters violate the target operation contract, scope rules, or ser...
AWS LimitExceededException means the operation would violate a configured service limit (for example resource count, rule size, or operation concurrency). Many...