{"record":{"id":"df2aea8f829299f9","repo":"kubernetes/kops","slug":"error-extracting-networks-from-pages-v","errorCode":null,"errorMessage":"error extracting networks from pages: %v","messagePattern":"error extracting networks from pages: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"upup/pkg/fi/cloudup/openstack/network.go","lineNumber":140,"sourceCode":"\t}\n}\n\nfunc (c *openstackCloud) ListNetworks(opt networks.ListOptsBuilder) ([]networks.Network, error) {\n\treturn listNetworks(c, opt)\n}\n\nfunc listNetworks(c OpenstackCloud, opt networks.ListOptsBuilder) ([]networks.Network, error) {\n\tvar ns []networks.Network\n\n\tdone, err := vfs.RetryWithBackoff(readBackoff, func() (bool, error) {\n\t\tallPages, err := networks.List(c.NetworkingClient(), opt).AllPages(context.TODO())\n\t\tif err != nil {\n\t\t\treturn false, fmt.Errorf(\"error listing networks: %v\", err)\n\t\t}\n\n\t\tr, err := networks.ExtractNetworks(allPages)\n\t\tif err != nil {\n\t\t\treturn false, fmt.Errorf(\"error extracting networks from pages: %v\", err)\n\t\t}\n\t\tns = r\n\t\treturn true, nil\n\t})\n\tif err != nil {\n\t\treturn ns, err\n\t} else if done {\n\t\treturn ns, nil\n\t} else {\n\t\treturn ns, wait.ErrWaitTimeout\n\t}\n}\n\nfunc (c *openstackCloud) GetExternalNetwork() (net *networks.Network, err error) {\n\treturn getExternalNetwork(c, *c.extNetworkName)\n}\n\nfunc getExternalNetwork(c OpenstackCloud, networkName string) (net *networks.Network, err error) {","sourceCodeStart":122,"sourceCodeEnd":158,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/upup/pkg/fi/cloudup/openstack/network.go#L122-L158","documentation":"The network list succeeded but extracting network objects from the paginated response failed, indicating a malformed or SDK-incompatible response body.","triggerScenarios":"Neutron returns response bodies that don't match Gophercloud's expected networks schema (e.g. plugin extensions or a proxy/intermediary altering JSON).","commonSituations":"Neutron version mismatch with the vendored Gophercloud schema; custom Neutron plugins/extensions returning extra/odd fields; API gateway mangling responses.","solutions":[],"exampleFix":null,"handlingStrategy":"fallback","validationCode":"// verify Neutron API version matches the vendored gophercloud schema\nver, _ := osClient.NetworkingV2().Get(ctx).ExtractVersion()\n// compare against supported versions","typeGuard":null,"tryCatchPattern":"ns, err := listNetworks(c, opt)\nif err != nil {\n    log.Printf(\"list/extract failed, falling back to per-network Get: %v\", err)\n    return getNetworkByIDFallback(c, opt)\n}","preventionTips":["Align kops/Gophercloud versions with your OpenStack release","Bypass or correctly configure proxies that may alter API responses","Test against a staging OpenStack of the same version","Report persistent extraction failures upstream with raw response"],"tags":["openstack","neutron","network","deserialization"],"backgroundTag":"api-response-deserialization","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T07:17:12.445Z"}