Crosstalk-Solutions/project-nomad · error · Error

Failed to create chat session

Error message

Failed to create chat session

What it means

ChatService.createSession swallows the original database error and rethrows this opaque message after logging it. It means creating the chat session row via Lucid/AdonisJS failed — typically a DB connection problem or a NOT NULL/constraint violation on the chat_sessions table.

Source

Thrown at admin/app/services/chat_service.ts:153

  async createSession(title: string, model?: string) {
    try {
      const session = await ChatSession.create({
        title,
        model: model || null,
      })

      return {
        id: session.id.toString(),
        title: session.title,
        model: session.model,
        timestamp: session.created_at.toJSDate(),
      }
    } catch (error) {
      logger.error(
        `[ChatService] Failed to create session: ${error instanceof Error ? error.message : error}`
      )
      throw new Error('Failed to create chat session')
    }
  }

  async updateSession(sessionId: number, data: { title?: string; model?: string }) {
    try {
      const session = await ChatSession.findOrFail(sessionId)

      if (data.title) {
        session.title = data.title
      }
      if (data.model !== undefined) {
        session.model = data.model
      }

      await session.save()

      return {
        id: session.id.toString(),

View on GitHub (pinned to 0bd1c6f4f9)

Solutions

1. Check the server log for '[ChatService] Failed to create session: <cause>' — the real DB error is there
2. Run node ace migration:run to ensure chat_sessions exists and matches the model
3. Verify DB connection env vars (DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_DATABASE) and that the DB server is up
4. If a new required column was added to the model, add a default or a migration backfill
5. Set { cause: error } on the rethrow so callers see the underlying failure

Example fix

// before
throw new Error('Failed to create chat session')

// after
throw new Error('Failed to create chat session', { cause: error })

await db.rawQuery('SELECT 1') // confirm DB reachable before opening a chat session

try { const s = await chat.createSession(...) } catch (e) { if (e instanceof Error && e.message === 'Failed to create chat session') { notifyUser('Chat unavailable'); return } throw e }

When it happens

Trigger: POSTing a new chat session while the database is unreachable, the chat_sessions migration hasn't run (missing table), or ChatSession.create receives undefined for a required column (e.g. a defaulted title/model column not present in the schema).

Common situations: Forgot to run migrations in a fresh environment, DB credentials/host misconfigured in .env, database container not started, or a schema change (new NOT NULL column) deployed without a migration.

Related errors

• Failed to update chat session
• Failed to add message
• Failed to delete chat session
• Failed to delete all chat sessions
• No response from Ollama

AI-assisted analysis of Crosstalk-Solutions/project-nomad@0bd1c6f4f9 (2026-08-27). Data as JSON: /api/errors/aebd82c90a3ab2f1. Report an issue: GitHub.