Gemini 2.0 doesn't work with openmanus

[persongit24]

My prompt is "1 USD to EUR"
My toml has this for the LLM config and it fails - not sure what is going on, I tried to look at other issues and on YT but no luck. Thanks in advance.

Global LLM configuration

[llm]
model = "gemini-2.0-flash" # The LLM model to use
base_url = "https://generativelanguage.googleapis.com/v1beta/openai" # API endpoint URL
api_key = "my_key" # Your API key
temperature = 0.0 # Controls randomness
max_tokens = 8096 # Maximum number of tokens in the response

Optional configuration for specific LLM models for Google

[llm.vision]
model = "gemini-2.0-flash-exp" # The vision model to use
base_url = "https://generativelanguage.googleapis.com/v1beta/openai" # API endpoint URL for vision model
api_key = "my_key" # Your API key for vision model
max_tokens = 8192 # Maximum number of tokens in the response
temperature = 0.0 # Controls randomness for vision model

...
Search results for 'xe.com convert USD to EUR':

1. 1 USD to EUR - US Dollars to Euros Exchange Rate - XE.com
   URL: https://www.xe.com/currencyconverter/convert/?Amount=1&From=USD&To=EUR
   Description: Get the latest 1 US Dollar to Euro rate for FREE with the original Universal Currency Converter. Set rate alerts for to and learn more about US Dollars and ...
   Content: 1 USD to EUR - US Dollars to Euros Exchange Rate 1 USD to EUR - Convert US Dollars to Euros Xe Currency Converter Convert Send Charts Alerts Amount 1 $ From USD - US Dollar To EUR - Euro 1.00 US Dollar = 0.91 565039 Euros 1 EUR = 1.09212 USD US Dollar to Euro conversion — Last updated Apr 6, 2025, 20:04 UTC Explore Xe Insights View transfer quote We use the mid-market rate for our Converter. This is for informational purposes only. You won’t receive this rate when sending money. Login to view send rates Convert US Dollar to Euro USD EUR 1 USD NaN EUR 5 USD NaN EUR 10 USD NaN EUR 25 USD NaN EUR 50 USD NaN EUR 100 USD NaN EUR 500 USD NaN EUR 1,000 USD NaN EUR 5,000 USD NaN EUR 10,000 USD NaN EUR Convert Euro to US Dollar EUR USD 1 EUR NaN USD 5 EUR NaN USD 10 EUR NaN USD 25 EUR NaN USD 50 EUR NaN USD 100 EUR NaN USD 500 EUR NaN USD 1,000 EUR NaN USD 5,000 EUR NaN USD 10,000 EUR NaN USD USD to EUR chart USD to EUR Chart 1 USD = 0 EUR Statistic Last 7 Days Last 30 Days Last 90 Days High 0....

Metadata:

• Total results: 1
• Language: en
• Country: us
  2025-04-06 13:05:00.282 | INFO | app.agent.base:run:140 - Executing step 6/20
  2025-04-06 13:05:07.435 | INFO | app.llm:update_token_count:250 - Token usage: Input=4219, Completion=61, Cumulative Input=15694, Cumulative Completion=279, Total=4280, Cumulative Total=15973
  2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:81 - ✨ Manus's thoughts: I have found a promising search result that leads directly to the XE.com currency converter for USD to EUR. I will now extract the content from this page to get the exchange rate.

2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:82 - 🛠️ Manus selected 1 tools to use
2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:86 - 🧰 Tools being prepared: ['browser_use']
2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:89 - 🔧 Tool arguments: {"action":"extract_content","goal":"Extract the current exchange rate of 1 USD to EUR from the page."}
2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:execute_tool:180 - 🔧 Activating tool: 'browser_use'...
2025-04-06 13:05:07.637 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]
2025-04-06 13:05:07.638 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]
2025-04-06 13:05:08.790 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]
2025-04-06 13:05:08.790 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]
2025-04-06 13:05:10.177 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]
2025-04-06 13:05:10.177 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]

[zyren123]

My prompt is "1 USD to EUR" My toml has this for the LLM config and it fails - not sure what is going on, I tried to look at other issues and on YT but no luck. Thanks in advance.

Global LLM configuration

[llm] model = "gemini-2.0-flash" # The LLM model to use base_url = "https://generativelanguage.googleapis.com/v1beta/openai" # API endpoint URL api_key = "my_key" # Your API key temperature = 0.0 # Controls randomness max_tokens = 8096 # Maximum number of tokens in the response

Optional configuration for specific LLM models for Google

[llm.vision] model = "gemini-2.0-flash-exp" # The vision model to use base_url = "https://generativelanguage.googleapis.com/v1beta/openai" # API endpoint URL for vision model api_key = "my_key" # Your API key for vision model max_tokens = 8192 # Maximum number of tokens in the response temperature = 0.0 # Controls randomness for vision model

... Search results for 'xe.com convert USD to EUR':

1. 1 USD to EUR - US Dollars to Euros Exchange Rate - XE.com
   URL: https://www.xe.com/currencyconverter/convert/?Amount=1&From=USD&To=EUR
   Description: Get the latest 1 US Dollar to Euro rate for FREE with the original Universal Currency Converter. Set rate alerts for to and learn more about US Dollars and ...
   Content: 1 USD to EUR - US Dollars to Euros Exchange Rate 1 USD to EUR - Convert US Dollars to Euros Xe Currency Converter Convert Send Charts Alerts Amount 1 $ From USD - US Dollar To EUR - Euro 1.00 US Dollar = 0.91 565039 Euros 1 EUR = 1.09212 USD US Dollar to Euro conversion — Last updated Apr 6, 2025, 20:04 UTC Explore Xe Insights View transfer quote We use the mid-market rate for our Converter. This is for informational purposes only. You won’t receive this rate when sending money. Login to view send rates Convert US Dollar to Euro USD EUR 1 USD NaN EUR 5 USD NaN EUR 10 USD NaN EUR 25 USD NaN EUR 50 USD NaN EUR 100 USD NaN EUR 500 USD NaN EUR 1,000 USD NaN EUR 5,000 USD NaN EUR 10,000 USD NaN EUR Convert Euro to US Dollar EUR USD 1 EUR NaN USD 5 EUR NaN USD 10 EUR NaN USD 25 EUR NaN USD 50 EUR NaN USD 100 EUR NaN USD 500 EUR NaN USD 1,000 EUR NaN USD 5,000 EUR NaN USD 10,000 EUR NaN USD USD to EUR chart USD to EUR Chart 1 USD = 0 EUR Statistic Last 7 Days Last 30 Days Last 90 Days High 0....

Metadata:

• Total results: 1
• Language: en
• Country: us
  2025-04-06 13:05:00.282 | INFO | app.agent.base:run:140 - Executing step 6/20
  2025-04-06 13:05:07.435 | INFO | app.llm:update_token_count:250 - Token usage: Input=4219, Completion=61, Cumulative Input=15694, Cumulative Completion=279, Total=4280, Cumulative Total=15973
  2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:81 - ✨ Manus's thoughts: I have found a promising search result that leads directly to the XE.com currency converter for USD to EUR. I will now extract the content from this page to get the exchange rate.

2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:82 - 🛠️ Manus selected 1 tools to use 2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:86 - 🧰 Tools being prepared: ['browser_use'] 2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:think:89 - 🔧 Tool arguments: {"action":"extract_content","goal":"Extract the current exchange rate of 1 USD to EUR from the page."} 2025-04-06 13:05:07.436 | INFO | app.agent.toolcall:execute_tool:180 - 🔧 Activating tool: 'browser_use'... 2025-04-06 13:05:07.637 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}] 2025-04-06 13:05:07.638 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}] 2025-04-06 13:05:08.790 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}] 2025-04-06 13:05:08.790 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}] 2025-04-06 13:05:10.177 | ERROR | app.llm:ask_tool:763 - OpenAI API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}] 2025-04-06 13:05:10.177 | ERROR | app.llm:ask_tool:769 - API error: Error code: 400 - [{'error': {'code': 400, 'message': '* GenerateContentRequest.contents: contents is not specified\n', 'status': 'INVALID_ARGUMENT'}}]

two potential solution.1:you need to change the role of your messgae to user. google prohibit the message without user. it will raise the error if your message only has role "system".
2: change the tool_choice to auto instead of required. some model provider does not support tool choice required.

[3pochs]

I made this change to fix the way the prompt was being structured in the call to the LLM.

Previously, it combined both the instructions and the goal into a single system message, which isn’t ideal for models that rely on the standard chat format. Now it splits it properly into:

a system_prompt that gives the general instruction,

and a user_prompt that includes the actual extraction goal and page content.

This should make the model behave more predictably and follow the instructions better. Let me know if this clears up the issue you were running into! heres the patch.

#1006

system_prompt = """Your task is to extract the content of the page. You will be given a page and a goal, and you should extract all relevant information around this goal from the page. If the goal is vague, summarize the page. Respond in json format."""
                    user_prompt = f"""Extraction goal: {goal}

Page content:
{content[:max_content_length]}"""

                    messages = [
                        {"role": "system", "content": system_prompt},
                        {"role": "user", "content": user_prompt},
                    ]

The Code Above Should Replace

prompt = f"""\
Your task is to extract the content of the page. You will be given a page and a goal, and you should extract all relevant information around this goal from the page. If the goal is vague, summarize the page. Respond in json format.
Extraction goal: {goal}

Page content:
{content[:max_content_length]}
"""
                    messages = [{"role": "system", "content": prompt}]

[FrankLi123]

@3pochs Have you thought about making a New PR to add this feature? I also raised a issue about enabling Google Gemini model as the default llm. That will be very helpful for token-consuming tasks.

[SunilRoy-dev]

i am also having issues with using gemini api as it is free but not supported by openmanus. can you tell me how to make it work