{"record":{"id":"53defd7f982de3f5","repo":"Kong/insomnia","slug":"environment-variable-default-app-name-is-not-set","errorCode":null,"errorMessage":"Environment variable DEFAULT_APP_NAME is not set.","messagePattern":"Environment variable DEFAULT_APP_NAME is not set\\.","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/insomnia-inso/src/util.ts","lineNumber":29,"sourceCode":"    case 'darwin': {\n      return path.join(homedir(), 'Library', 'Application Support', app);\n    }\n    case 'win32': {\n      return path.join(process.env.APPDATA || path.join(homedir(), 'AppData', 'Roaming'), app);\n    }\n    case 'linux': {\n      return path.join(process.env.XDG_DATA_HOME || path.join(homedir(), '.config'), app);\n    }\n    default: {\n      throw new Error('Unsupported platform');\n    }\n  }\n}\n\nexport const getDefaultProductName = (): string => {\n  const name = process.env.DEFAULT_APP_NAME;\n  if (!name) {\n    throw new Error('Environment variable DEFAULT_APP_NAME is not set.');\n  }\n  return name;\n};\n","sourceCodeStart":11,"sourceCodeEnd":33,"githubUrl":"https://github.com/Kong/insomnia/blob/d9bb2b0142600f21309832daea3317942d285984/packages/insomnia-inso/src/util.ts#L11-L33","documentation":"Environment guard in getDefaultProductName: the DEFAULT_APP_NAME variable was not defined at build/runtime, so the CLI has no product name to derive application data directories. This indicates a packaging or environment misconfiguration rather than user error.","triggerScenarios":"Thrown at packages/insomnia-inso/src/util.ts:29 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Set DEFAULT_APP_NAME in the environment (normally injected at build/bundling time)","Run via the packaged CLI binary, which bakes the variable in"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"d9bb2b0142600f21309832daea3317942d285984","analyzedAt":"2026-08-26T18:04:05.187Z","contentChangedAt":"2026-08-26T18:04:05.187Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}