Python: ImportError: cannot import name 'GroupChatBuilder' from 'agent_framework' in sample script

[harinath23]

When running the sample script:

python samples/getting_started/workflows/orchestration/group_chat_prompt_based_manager.py

an ImportError occurs:

ImportError: cannot import name 'GroupChatBuilder' from 'agent_framework'

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Steps to Reproduce

1. Clone the repo and set up the environment as per README.

2. Run:

   python samples/getting_started/workflows/orchestration/group_chat_prompt_based_manager.py

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Environment

• OS: Windows 11
• Python: 3.x (Anaconda)
• Agent Framework version: 1.0.0b251108

[tae0y]

Hello, I ran into the same issue. After installing the package with uv add agent-framework, I wasn’t able to import GroupChatBuilder.

A similar report in the closed issues suggested upgrading the agent-framework-core version:
#1771 (comment)

In my case, agent-framework-core was on the October 1st release, and updating it to the November 1st release resolved the issue.

The following command may help. It requires the prerelease allow option:

uv lock --upgrade-package agent-framework-core --prerelease=allow