{"record":{"id":"ce3c506b6983f0ea","repo":"googleapis/mcp-toolbox","slug":"failed-to-initialize-resources-w","errorCode":null,"errorMessage":"failed to initialize resources: %w","messagePattern":"failed to initialize resources: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/internal/invoke/command.go","lineNumber":70,"sourceCode":"\tdefer cancel()\n\n\tctx, shutdown, err := opts.Setup(ctx)\n\tif err != nil {\n\t\treturn err\n\t}\n\tdefer func() {\n\t\t_ = shutdown(ctx)\n\t}()\n\n\t_, err = opts.LoadConfig(ctx, &internal.ConfigParser{})\n\tif err != nil {\n\t\treturn err\n\t}\n\n\t// Initialize Resources\n\tsourcesMap, authServicesMap, embeddingModelsMap, toolsMap, promptsMap, groupsMap, err := server.InitializeConfigs(ctx, opts.Cfg)\n\tif err != nil {\n\t\terrMsg := fmt.Errorf(\"failed to initialize resources: %w\", err)\n\t\topts.Logger.ErrorContext(ctx, errMsg.Error())\n\t\treturn errMsg\n\t}\n\n\tprimitiveMgr := primitives.NewPrimitiveManager(sourcesMap, authServicesMap, embeddingModelsMap, toolsMap, promptsMap, groupsMap)\n\n\t// Execute Tool\n\ttoolName := args[0]\n\ttool, ok := primitiveMgr.GetTool(toolName)\n\tif !ok {\n\t\terrMsg := fmt.Errorf(\"tool %q not found\", toolName)\n\t\topts.Logger.ErrorContext(ctx, errMsg.Error())\n\t\treturn errMsg\n\t}\n\n\tsrcName := tool.GetSourceName()\n\tvar src sources.Source\n\tif srcName != \"\" {","sourceCodeStart":52,"sourceCodeEnd":88,"githubUrl":"https://github.com/googleapis/mcp-toolbox/blob/8cc6e09de2ad7b8bffc77751799585a1401a48eb/cmd/internal/invoke/command.go#L52-L88","documentation":"The `invoke` CLI command calls server.InitializeConfigs to build all sources, auth services, embedding models, tools, prompts, and groups from the resolved config. If any of those components fails to initialize (bad YAML, unresolvable source connection, invalid tool definition, duplicate names), the whole run aborts with this wrapped error. The original underlying error is preserved via %w, so it names the actual failing resource.","triggerScenarios":"Running `toolbox invoke <tool> ...` (runInvoke) where InitializeConfigs fails: malformed config YAML, a source that cannot connect during initialization, an unknown auth service referenced by a tool, or invalid prompt/group definitions.","commonSituations":"Typo in tools-file kind/name fields, database credentials wrong or network unreachable so source init fails, referencing a source that isn't defined, incompatible config version after upgrading the toolbox binary.","solutions":["Read the wrapped cause after this message — it names the exact resource (source/tool/prompt) that failed to initialize","Run `toolbox validate` (or start the server once) to surface the same config error before invoking","Check source connectivity: verify connection strings, credentials, and that the database is reachable from this host","If a version upgrade broke it, diff your tools file against the release's config schema/docs"],"exampleFix":"// before\ntoolbox invoke --tools-file tools.yaml my-tool\n// failed to initialize resources: source \"db\" failed to connect: password authentication failed\n// after\n# fix credentials/connection in tools.yaml, validate first:\ntoolbox validate --tools-file tools.yaml\ntoolbox invoke --tools-file tools.yaml my-tool","handlingStrategy":"try-catch","validationCode":"// validate config before invoking\ncmd := exec.Command(\"toolbox\", \"validate\", \"--tools-file\", cfgPath)\nif out, err := cmd.CombinedOutput(); err != nil {\n    return fmt.Errorf(\"invalid config: %s\", out)\n}","typeGuard":null,"tryCatchPattern":"if err := runInvoke(ctx, opts); err != nil {\n    var initErr *fmt.WrapError // or check via errors.As/Unwrap\n    if strings.Contains(err.Error(), \"failed to initialize resources\") {\n        cause := errors.Unwrap(err)\n        log.Printf(\"resource init failed: %v\", cause)\n        // route to config-fix path, not retry\n    }\n    return err\n}","preventionTips":["Run `toolbox validate` (or boot the server) before scripted invoke calls","Keep source credentials in env/secret refs and verify DB reachability beforehand","Pin the toolbox version and re-validate configs after upgrades"],"tags":["go","cli","config","initialization"],"backgroundTag":"resource-init-failed","analyzedSha":"8cc6e09de2ad7b8bffc77751799585a1401a48eb","analyzedAt":"2026-09-05T01:10:36.887Z","contentChangedAt":"2026-09-05T01:10:36.887Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}