{"record":{"id":"91878cc55412f95b","repo":"caddyserver/caddy","slug":"loading-upstream-source-modules-v","errorCode":null,"errorMessage":"loading upstream source modules: %v","messagePattern":"loading upstream source modules: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"modules/caddyhttp/reverseproxy/upstreams.go","lineNumber":483,"sourceCode":"\n\tlogger *zap.Logger\n}\n\n// CaddyModule returns the Caddy module information.\nfunc (MultiUpstreams) CaddyModule() caddy.ModuleInfo {\n\treturn caddy.ModuleInfo{\n\t\tID:  \"http.reverse_proxy.upstreams.multi\",\n\t\tNew: func() caddy.Module { return new(MultiUpstreams) },\n\t}\n}\n\nfunc (mu *MultiUpstreams) Provision(ctx caddy.Context) error {\n\tmu.logger = ctx.Logger()\n\n\tif mu.SourcesRaw != nil {\n\t\tmod, err := ctx.LoadModule(mu, \"SourcesRaw\")\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"loading upstream source modules: %v\", err)\n\t\t}\n\t\tsources := mod.([]any)\n\t\tmu.sources = make([]UpstreamSource, 0, len(sources))\n\t\tfor _, src := range sources {\n\t\t\tmu.sources = append(mu.sources, src.(UpstreamSource))\n\t\t}\n\t}\n\n\treturn nil\n}\n\nfunc (mu MultiUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) {\n\tvar upstreams []*Upstream\n\n\tfor i, src := range mu.sources {\n\t\tselect {\n\t\tcase <-r.Context().Done():\n\t\t\treturn upstreams, context.Canceled","sourceCodeStart":465,"sourceCodeEnd":501,"githubUrl":"https://github.com/caddyserver/caddy/blob/50e54ee279aa1e504fe218ca49ab6ae16c100410/modules/caddyhttp/reverseproxy/upstreams.go#L465-L501","documentation":"Error \"loading upstream source modules: %v\" thrown in caddyserver/caddy.","triggerScenarios":"Thrown at modules/caddyhttp/reverseproxy/upstreams.go:483 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check the wrapped error for the failing upstream source module and fix its configuration or module name."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"50e54ee279aa1e504fe218ca49ab6ae16c100410","analyzedAt":"2026-08-15T09:20:21.641Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}