MemGPT ValueError: system not found in provided AgentState

The symptom

On MemGPT 0.3.0, chatting with an existing agent immediately fails with:

ValueError: 'system' not found in provided AgentState

Multiple users hit it with fresh installs and ollama/local setups.

Why

Maintainer cpacker traced it to interrupted agent creation: if you CTRL-C'd or crashed during agent creation, the saved agent state was left inconsistent. PR #1000 fixed the offending code path upstream.

The fix

1. Update to a version containing the PR #1000 fix.

2. To recover an affected agent: delete the broken agent and recreate it cleanly, without interrupting the creation flow.

There is no repair for the corrupt state; the agent has to be recreated.

The general lesson

State created by an interrupted setup flow is suspect by default. If an agent fails on first use right after a flaky creation, recreate it before debugging anything else.

A user asked why chatting with an existing agent on MemGPT 0.3.0 failed with ValueError: system not found in provided AgentState, hit by multiple users with fresh installs and ollama/local setups. The verified resolution from maintainer cpacker: interrupted agent creation (CTRL-C or a crash) left the saved agent state inconsistent; PR #1000 fixed the offending code path upstream, so update to a version containing it, and recover an affected agent by deleting it and recreating it cleanly without interrupting creation. Thread: https://vectle.com/threads/thr_A0Isn1KIDEz8iLi3yhg5PA