{"record":{"id":"27ba4b6d1fb63613","repo":"chatboxai/chatbox","slug":"resource-references-an-unknown-session-sessioni","errorCode":null,"errorMessage":"Resource references an unknown session: ${sessionId}","messagePattern":"Resource references an unknown session: (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/renderer/packages/backup/types.ts","lineNumber":116,"sourceCode":"    if (sessionIds.has(session.id)) throw new Error(`Duplicate session id in manifest: ${session.id}`)\n    sessionIds.add(session.id)\n    if (session.meta.id !== session.id) throw new Error(`Session metadata id does not match: ${session.id}`)\n  }\n  for (const resource of manifest.resources) {\n    if (resourceIds.has(resource.id)) throw new Error(`Duplicate resource id in manifest: ${resource.id}`)\n    resourceIds.add(resource.id)\n    const ownResourceKeys = new Set<string>()\n    for (const key of resource.originalStorageKeys) {\n      if (ownResourceKeys.has(key)) throw new Error(`Resource contains a duplicate storage key: ${resource.id}`)\n      ownResourceKeys.add(key)\n      if (resourceKeys.has(key)) throw new Error(`Duplicate resource storage key in manifest: ${key}`)\n      resourceKeys.add(key)\n    }\n    const ownSessionIds = new Set<string>()\n    for (const sessionId of resource.sessionIds) {\n      if (ownSessionIds.has(sessionId)) throw new Error(`Resource contains a duplicate session id: ${resource.id}`)\n      ownSessionIds.add(sessionId)\n      if (!sessionIds.has(sessionId)) throw new Error(`Resource references an unknown session: ${sessionId}`)\n    }\n    if (resource.scope === 'session' && resource.sessionIds.length !== 1) {\n      throw new Error(`Session-scoped resource must reference exactly one session: ${resource.id}`)\n    }\n    if (resource.scope === 'global' && resource.sessionIds.length !== 0) {\n      throw new Error(`Global resource must not reference a session: ${resource.id}`)\n    }\n  }\n  const resourcesById = new Map(manifest.resources.map((resource) => [resource.id, resource]))\n  const sessionsById = new Map(manifest.sessions.map((session) => [session.id, session]))\n  for (const session of manifest.sessions) {\n    const ownResourceIds = new Set<string>()\n    for (const resourceId of session.resourceIds) {\n      if (ownResourceIds.has(resourceId)) throw new Error(`Session contains a duplicate resource id: ${session.id}`)\n      ownResourceIds.add(resourceId)\n      if (!resourceIds.has(resourceId)) throw new Error(`Session references an unknown resource: ${resourceId}`)\n      if (!resourcesById.get(resourceId)?.sessionIds.includes(session.id)) {\n        throw new Error(`Session/resource mapping is inconsistent: ${session.id}/${resourceId}`)","sourceCodeStart":98,"sourceCodeEnd":134,"githubUrl":"https://github.com/chatboxai/chatbox/blob/81571269addb6bafb589a920b2883f1e1e084fd1/src/renderer/packages/backup/types.ts#L98-L134","documentation":"Thrown when a resource lists a sessionId that does not correspond to any session in manifest.sessions. Every session referenced by a resource must exist, so dangling references are rejected.","triggerScenarios":"resource.sessionIds contains an id not present among the manifest.sessions ids.","commonSituations":"A session was deleted after resources were attached; a partial export that included resources but not their sessions; mismatched id casing.","solutions":["Add the missing session entry to manifest.sessions.","Remove the dangling sessionId from the resource.","Re-export sessions and resources together."],"exampleFix":"// before\n// resource references a session not in manifest.sessions\n\n// after\nconst ids = new Set(manifest.sessions.map((s) => s.id))\nfor (const r of manifest.resources) {\n  r.sessionIds = r.sessionIds.filter((id) => ids.has(id))\n}","handlingStrategy":"try-catch","validationCode":"function findDanglingSessionRefs(manifest: BackupManifest): string[] {\n  const ids = new Set(manifest.sessions.map((s) => s.id))\n  const dups = new Set<string>()\n  for (const r of manifest.resources) for (const sid of r.sessionIds) if (!ids.has(sid)) dups.add(sid)\n  return [...dups]\n}","typeGuard":null,"tryCatchPattern":"try {\n  validateBackupManifestGraph(manifest)\n} catch (error) {\n  if (/references an unknown session/.test((error as Error).message)) pruneDanglingSessionRefs(manifest)\n  throw error\n}","preventionTips":["Always export sessions and their resources together.","When deleting a session, remove it from every resource's sessionIds.","Normalize id casing/whitespace before packing the manifest."],"tags":["backup","manifest","validation","referential-integrity"],"backgroundTag":null,"analyzedSha":"81571269addb6bafb589a920b2883f1e1e084fd1","analyzedAt":"2026-08-12T21:51:44.981Z","schemaVersion":2},"datasetVersion":"2026-08-12T23:17:12.415Z"}