Error choosing agent: Unknown encoding o200k_base. Plugins found: ['tiktoken_ext.openai_public']

[mesbahkhan]

I am getting the following error when running the basic example code from https://docs.gptr.dev/docs/examples/examples

.🔎 Starting the research task for 'What happened in the latest burning man floods?'...
Error choosing agent: Unknown encoding o200k_base. Plugins found: ['tiktoken_ext.openai_public']

File "D:\S\python\ai_services\Lib\site-packages\gpt_researcher\master\agent.py", line 96, in conduct_research
context = await self.__get_context_by_search(self.query)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\S\python\ai_services\Lib\site-packages\gpt_researcher\master\agent.py", line 177, in __get_context_by_search
sub_queries = await get_sub_queries(query=query, agent_role_prompt=self.role,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\S\python\ai_services\Lib\site-packages\gpt_researcher\master\actions.py", line 99, in get_sub_queries
response = await create_chat_completion(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\S\python\ai_services\Lib\site-packages\gpt_researcher\utils\llm.py", line 102, in create_chat_completion
llm_costs = estimate_llm_cost(str(messages), response)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\S\python\ai_services\Lib\site-packages\gpt_researcher\utils\costs.py", line 13, in estimate_llm_cost
encoding = tiktoken.get_encoding(ENCODING_MODEL)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\S\python\ai_services\Lib\site-packages\tiktoken\registry.py", line 68, in get_encoding
raise ValueError(
ValueError: Unknown encoding o200k_base. Plugins found: ['tiktoken_ext.openai_public']

[assafelovic]

Do you have tiktoken installed to latest version?
pip install tiktoken -U

[mesbahkhan]

Yes that did the trick, thanks @assafelovic