{"record":{"id":"d9b992e463216acc","repo":"Foundry376/Mailspring","slug":"eventheader-could-not-parse-ics-data-from-attachm","errorCode":null,"errorMessage":"EventHeader: Could not parse ICS data from attachment ${file.filename}: ${e.message}","messagePattern":"EventHeader: Could not parse ICS data from attachment (.+?): (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"app/internal_packages/events/lib/event-header.tsx","lineNumber":77,"sourceCode":"  componentWillUnmount() {\n    this._mounted = false;\n    if (this._subscription) {\n      this._subscription.dispose();\n    }\n  }\n\n  componentDidMount() {\n    const { file, message } = this.props;\n    this._mounted = true;\n\n    fs.readFile(AttachmentStore.pathForFile(file), async (err, data) => {\n      if (err || !this._mounted) return;\n\n      let parsed: ReturnType<typeof CalendarUtils.parseICSString>;\n      try {\n        parsed = CalendarUtils.parseICSString(data.toString());\n      } catch (e) {\n        console.warn(\n          `EventHeader: Could not parse ICS data from attachment ${file.filename}: ${e.message}`\n        );\n        return;\n      }\n      const { event, root } = parsed;\n\n      const method = root.getFirstPropertyValue('method');\n      const methodLower = (typeof method === 'string' ? method : 'request').toLowerCase();\n      // Normalize to known methods: request, reply, cancel. Default unknown methods to request.\n      const normalizedMethod =\n        methodLower === 'reply' || methodLower === 'cancel' ? methodLower : 'request';\n      this.setState({\n        icsEvent: event,\n        icsMethod: normalizedMethod as 'reply' | 'request' | 'cancel',\n        icsOriginalData: data.toString(),\n      });\n\n      this._subscription = Rx.Observable.fromQuery(","sourceCodeStart":59,"sourceCodeEnd":95,"githubUrl":"https://github.com/Foundry376/Mailspring/blob/648c685d602ece6bb00c22534b8734de6ac644b3/app/internal_packages/events/lib/event-header.tsx#L59-L95","documentation":"Warning in EventHeader.componentDidMount: the .ics attachment file was read from disk but CalendarUtils.parseICSString threw while parsing it, so the emailed invite could not be displayed as an event header. Corrupt or non-standard ICS payload; the header silently skips rendering the RSVP UI.","triggerScenarios":"Thrown at app/internal_packages/events/lib/event-header.tsx:77 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["No user action available in-app — the attachment is malformed","Log or report the attachment filename so badly-generated invites (buggy organizer software) can be identified","Render a plain fallback view of the attachment instead of nothing"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"648c685d602ece6bb00c22534b8734de6ac644b3","analyzedAt":"2026-09-03T02:00:24.311Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-10T07:17:11.731Z"}