{"record":{"id":"7088c6f3416cfb96","repo":"owasp-amass/amass","slug":"failed-to-initialize-command-for-s","errorCode":null,"errorMessage":"failed to initialize command for %s","messagePattern":"failed to initialize command for (.+?)","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/amass/process.go","lineNumber":41,"sourceCode":"\n\tctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)\n\tdefer cancel()\n\n\treturn c.HealthCheck(ctx)\n}\n\nfunc startEngine() error {\n\tp, err := os.Executable()\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to get executable path: %w\", err)\n\t}\n\tif p == \"\" {\n\t\treturn fmt.Errorf(\"executable path is empty\")\n\t}\n\n\tcmd := initCmd(p)\n\tif cmd == nil {\n\t\treturn fmt.Errorf(\"failed to initialize command for %s\", p)\n\t}\n\tcmd.Stdout = io.Discard\n\tcmd.Stderr = io.Discard\n\tcmd.Stdin = os.Stdin\n\n\tcmd.Dir, err = os.Getwd()\n\tif err != nil {\n\t\treturn err\n\t}\n\n\treturn cmd.Start()\n}\n","sourceCodeStart":23,"sourceCodeEnd":54,"githubUrl":"https://github.com/owasp-amass/amass/blob/79299dce87b0085db0f2f4ef3e9c52cccb49f514/cmd/amass/process.go#L23-L54","documentation":"startEngine builds the engine command with initCmd(p) using the resolved executable path. If initCmd returns nil (it could not construct a valid exec.Cmd for that path), this error names the path and aborts engine startup.","triggerScenarios":"initCmd returning nil because the executable path is unusable or the command construction (name/args) failed inside initCmd's internal checks.","commonSituations":"Binary rebuilt/renamed between health-check and relaunch; running through wrappers (symlinks, shim scripts) that confuse path resolution; permission-bit stripped from the binary.","solutions":["Verify the path p is a valid, executable file (os.Stat, exec.LookPath(p)).","Check initCmd's internals for why it returns nil and fix the inputs it depends on (name/args/environment).","Reinstall or restore the amass binary at a stable location and re-run."],"exampleFix":null,"handlingStrategy":"validation","validationCode":"p, _ := os.Executable()\nif fi, err := os.Stat(p); err != nil || fi.IsDir() || fi.Mode()&0111 == 0 {\n    return fmt.Errorf(\"path %s is not an executable file\", p)\n}","typeGuard":null,"tryCatchPattern":"if err := startEngine(); err != nil {\n    if strings.HasPrefix(err.Error(), \"failed to initialize command for\") {\n        log.Fatalf(\"bad engine path: %v\", err)\n    }\n}","preventionTips":["Keep the binary at a fixed path without shims or renamed symlinks.","Keep the executable permission bit set (chmod +x).","Test engine startup after every deploy/upgrade."],"tags":["process","exec","go"],"backgroundTag":"command-not-found","analyzedSha":"79299dce87b0085db0f2f4ef3e9c52cccb49f514","analyzedAt":"2026-09-06T08:22:48.198Z","contentChangedAt":"2026-09-06T08:22:48.198Z","schemaVersion":2},"datasetVersion":"2026-09-14T00:17:10.932Z"}