Originally created by @Kun-Zhang-x on GitHub (May 9, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/13732
### Check Existing Issues
- [x] I have searched the existing issues and discussions.
- [x] I am using the latest version of Open WebUI.
### Installation Method
Docker
### Open WebUI Version
v0.6.5
### Ollama Version (if applicable)
_No response_
### Operating System
Ubuntu 22.04
### Browser (if applicable)
_No response_
### Confirmation
- [x] I have read and followed all instructions in `README.md`.
- [x] I am using the latest version of **both** Open WebUI and Ollama.
- [x] I have included the browser console logs.
- [x] I have included the Docker container logs.
- [x] I have listed steps to reproduce the bug in detail.
### Expected Behavior
funcation call开启原生模式，成功调用mcp工具
### Actual Behavior
funcation call开启原生模式，调用工具报错
### Steps to Reproduce
1.启动openwebui、mcpo、vllm部署好模型
2.在页面上配置好模型、工具、function calling参数选择原生
3.开启对话，打开工具，输入对话调用工具
### Logs & Screenshots
2025-05-09 12:20:54.962 | INFO | open_webui.utils.chat:generate_direct_chat_completion:106 - res: {'object': 'error', 'message': "1 validation error for ValidatorIterator\n0.function.arguments\n Field required [type=missing, input_value={'name': 'tool_get_table_name_post'}, input_type=dict]\n For further information visit https://errors.pydantic.dev/2.11/v/missing", 'type': 'BadRequestError', 'param': None, 'code': 400} - {}
### Additional Information
vllm==0.8.5，模型采用的是qwq-32b和qwen3-32b。奇怪的是当我使用阿里百炼上的相同的模型就可以。使用本地部署的模型就不行。
GiteaMirror
added the bug label 2026-05-20 21:56:51 -05:00
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Originally created by @Kun-Zhang-x on GitHub (May 9, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/13732
Check Existing Issues
Installation Method
Docker
Open WebUI Version
v0.6.5
Ollama Version (if applicable)
No response
Operating System
Ubuntu 22.04
Browser (if applicable)
No response
Confirmation
README.md.Expected Behavior
funcation call开启原生模式，成功调用mcp工具
Actual Behavior
funcation call开启原生模式，调用工具报错
Steps to Reproduce
1.启动openwebui、mcpo、vllm部署好模型
2.在页面上配置好模型、工具、function calling参数选择原生
3.开启对话，打开工具，输入对话调用工具
Logs & Screenshots
2025-05-09 12:20:54.962 | INFO | open_webui.utils.chat:generate_direct_chat_completion:106 - res: {'object': 'error', 'message': "1 validation error for ValidatorIterator\n0.function.arguments\n Field required [type=missing, input_value={'name': 'tool_get_table_name_post'}, input_type=dict]\n For further information visit https://errors.pydantic.dev/2.11/v/missing", 'type': 'BadRequestError', 'param': None, 'code': 400} - {}
Additional Information
vllm==0.8.5，模型采用的是qwq-32b和qwen3-32b。奇怪的是当我使用阿里百炼上的相同的模型就可以。使用本地部署的模型就不行。