Cannot run agent node returns 404 Error in Debug Plugin #184

Closed
opened 2026-02-16 10:18:22 -05:00 by yindo · 3 comments
Owner

Originally created by @kevin527404691 on GitHub (Apr 10, 2025).

Self Checks

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Dify version

1.1.3

Cloud or Self Hosted

Cloud

Steps to reproduce

1.Create a Chatflow
2.Add agent node
3.Connect the agent node with input and output
4.Run it

✔️ Expected Behavior

No errors

Actual Behavior

Image

Failed to transform agent message: PluginInvokeError: {"args":{},"error_type":"Exception","message":"invoke llm model failed: request failed with status code: 404 and respond with: \u003c!DOCTYPE html\u003e\u003chtml lang=\"en-US\" class=\"h-full\"\u003e\u003chead\u003e\u003cmeta charSet=\"utf-8\"/\u003e\u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1, maximum-scale=1, viewport-fit=cover, user-scalable=no\"/\u003e\u003clink rel=\"stylesheet\" href=\"/_next/static/css/312c3a30cd1a3f18.css\" data-precedence=\"next\"/\u003e\u003clink rel=\"stylesheet\" href=\"/_next/static/css/a84e16e53b8b7ae2.css\" data-precedence=\"next\"/\u003e\u003clink rel=\"stylesheet\" href=\"/_next/static/css/6489123ff27bd84e.css\" data-precedence=\"next\"/\u003e\u003clink rel=\"stylesheet\" href=\"/_next/static/css/8c3d4075ea51bcce.css\" data-precedence=\"next\"/\u003e\u003clink rel=\"preload\" as=\"script\" fetchPriority=\"low\" 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Originally created by @kevin527404691 on GitHub (Apr 10, 2025). ### Self Checks - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report (我已阅读并同意 [Language Policy](https://github.com/langgenius/dify/issues/1542)). - [x] [FOR CHINESE USERS] 请务必使用英文提交 Issue,否则会被关闭。谢谢!:) - [x] Please do not modify this template :) and fill in all the required fields. ### Dify version 1.1.3 ### Cloud or Self Hosted Cloud ### Steps to reproduce 1.Create a Chatflow 2.Add agent node 3.Connect the agent node with input and output 4.Run it ### ✔️ Expected Behavior No errors ### ❌ Actual Behavior ![Image](https://github.com/user-attachments/assets/363b73ef-0b64-401a-87da-cf81b31f2333) ``` Failed to 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rgba(255,255,255,.3)}}\\\"}}],[\\\"$\\\",\\\"h1\\\",null,{\\\"className\\\":\\\"next-error-h1\\\",\\\"style\\\":\\\"$0:f:0:1:2:children:2:children:1:props:children:0:1:props:children:props:children:1:props:style\\\",\\\"children\\\":404}],[\\\"$\\\",\\\"div\\\",null,{\\\"style\\\":\\\"$0:f:0:1:2:children:2:children:1:props:children:0:1:props:children:props:children:2:props:style\\\",\\\"children\\\":[\\\"$\\\",\\\"h2\\\",null,{\\\"style\\\":\\\"$0:f:0:1:2:children:2:children:1:props:children:0:1:props:children:props:children:2:props:children:props:style\\\",\\\"children\\\":\\\"This page could not be found.\\\"}]}]]}]}]],[]],\\\"forbidden\\\":\\\"$undefined\\\",\\\"unauthorized\\\":\\\"$undefined\\\"}]}]}]\\n11:{\\\"metadata\\\":[[\\\"$\\\",\\\"title\\\",\\\"0\\\",{\\\"children\\\":\\\"Dify\\\"}]],\\\"error\\\":null,\\\"digest\\\":\\\"$undefined\\\"}\\nb:{\\\"metadata\\\":\\\"$11:metadata\\\",\\\"error\\\":null,\\\"digest\\\":\\\"$undefined\\\"}\\nd:[[\\\"$\\\",\\\"meta\\\",\\\"0\\\",{\\\"charSet\\\":\\\"utf-8\\\"}],[\\\"$\\\",\\\"meta\\\",\\\"1\\\",{\\\"name\\\":\\\"viewport\\\",\\\"content\\\":\\\"width=device-width, initial-scale=1, maximum-scale=1, viewport-fit=cover, user-scalable=no\\\"}]]\\n8:null\\n\"])\u003c/script\u003e\u003c/body\u003e\u003c/html\u003e"} ```
yindo closed this issue 2026-02-16 10:18:22 -05:00
Author
Owner

@dosubot[bot] commented on GitHub (Apr 10, 2025):

Hello @kevin527404691! I'm Dosu, your friendly bot here to help you solve bugs, answer questions, and assist you in becoming a contributor. While you wait for a human maintainer, feel free to share any details about your issue, and I'll do my best to assist you!

A similar issue has been reported where the agent node returns a 404 error in the Debug Plugin when running a Chatflow using the GPT-4 Chat model in Dify version 1.1.3 on the cloud. The error message "404, Conversation does not exist" suggests that the conversation is not being found, which could be due to configuration issues or missing data [1].

To resolve this, you can check the following:

  1. API Credentials: Ensure that the API credentials for the LLM model are correct and valid.
  2. Model Access: Verify that the model you are trying to use is available and that you have the necessary permissions.
  3. Configuration: Make sure your environment configuration, especially the .env file, is correctly set up. Ensure that the INNER_API_KEY_FOR_PLUGIN environment variable is set correctly.
  4. Model Name: If using an Ollama model, verify that the model name is correct and exists in Ollama's repository [2].

These steps should help in addressing the 404 error you are encountering.

To continue talking to Dosu, mention @dosu.


Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

@dosubot[bot] commented on GitHub (Apr 10, 2025): <!-- Greeting --> Hello @kevin527404691! I'm [Dosu](https://dosu.dev), your friendly bot here to help you solve bugs, answer questions, and assist you in becoming a contributor. While you wait for a human maintainer, feel free to share any details about your issue, and I'll do my best to assist you! <!-- Answer --> A similar issue has been reported where the agent node returns a 404 error in the Debug Plugin when running a Chatflow using the GPT-4 Chat model in Dify version 1.1.3 on the cloud. The error message "404, Conversation does not exist" suggests that the conversation is not being found, which could be due to configuration issues or missing data <sup>[[1]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.en.mdx)</sup>. To resolve this, you can check the following: 1. **API Credentials**: Ensure that the API credentials for the LLM model are correct and valid. 2. **Model Access**: Verify that the model you are trying to use is available and that you have the necessary permissions. 3. **Configuration**: Make sure your environment configuration, especially the `.env` file, is correctly set up. Ensure that the `INNER_API_KEY_FOR_PLUGIN` environment variable is set correctly. 4. **Model Name**: If using an Ollama model, verify that the model name is correct and exists in Ollama's repository <sup>[[2]](https://github.com/langgenius/dify/issues/16856)</sup>. These steps should help in addressing the 404 error you are encountering. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=other)</sup>
Author
Owner

@kevin527404691 commented on GitHub (Apr 10, 2025):

Hello @kevin527404691! I'm Dosu, your friendly bot here to help you solve bugs, answer questions, and assist you in becoming a contributor. While you wait for a human maintainer, feel free to share any details about your issue, and I'll do my best to assist you!

A similar issue has been reported where the agent node returns a 404 error in the Debug Plugin when running a Chatflow using the GPT-4 Chat model in Dify version 1.1.3 on the cloud. The error message "404, Conversation does not exist" suggests that the conversation is not being found, which could be due to configuration issues or missing data [1].

To resolve this, you can check the following:

  1. API Credentials: Ensure that the API credentials for the LLM model are correct and valid.
  2. Model Access: Verify that the model you are trying to use is available and that you have the necessary permissions.
  3. Configuration: Make sure your environment configuration, especially the .env file, is correctly set up. Ensure that the INNER_API_KEY_FOR_PLUGIN environment variable is set correctly.
  4. Model Name: If using an Ollama model, verify that the model name is correct and exists in Ollama's repository [2].

These steps should help in addressing the 404 error you are encountering.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

still not ok

@kevin527404691 commented on GitHub (Apr 10, 2025): > Hello [@kevin527404691](https://github.com/kevin527404691)! I'm [Dosu](https://dosu.dev), your friendly bot here to help you solve bugs, answer questions, and assist you in becoming a contributor. While you wait for a human maintainer, feel free to share any details about your issue, and I'll do my best to assist you! > > A similar issue has been reported where the agent node returns a 404 error in the Debug Plugin when running a Chatflow using the GPT-4 Chat model in Dify version 1.1.3 on the cloud. The error message "404, Conversation does not exist" suggests that the conversation is not being found, which could be due to configuration issues or missing data [[1]](https://github.com/langgenius/dify/blob/main/web/app/components/develop/template/template_chat.en.mdx). > > To resolve this, you can check the following: > > 1. **API Credentials**: Ensure that the API credentials for the LLM model are correct and valid. > 2. **Model Access**: Verify that the model you are trying to use is available and that you have the necessary permissions. > 3. **Configuration**: Make sure your environment configuration, especially the `.env` file, is correctly set up. Ensure that the `INNER_API_KEY_FOR_PLUGIN` environment variable is set correctly. > 4. **Model Name**: If using an Ollama model, verify that the model name is correct and exists in Ollama's repository [[2]](https://github.com/langgenius/dify/issues/16856). > > These steps should help in addressing the 404 error you are encountering. > > _To continue talking to [Dosu](https://dosu.dev), mention [@dosu](https://github.com/dosu)._ > > Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/2b38330f-f58f-44e7-82d7-a00456229115?feedback_type=other) still not ok
Author
Owner

@dosubot[bot] commented on GitHub (Aug 17, 2025):

Hi, @kevin527404691. I'm Dosu, and I'm helping the dify-official-plugins team manage their backlog and am marking this issue as stale.

Issue Summary:

  • You reported a 404 error "Conversation does not exist" from the Debug Plugin when running an agent node in a Chatflow on Dify v1.1.3 Cloud.
  • The error occurs specifically when invoking the LLM model, indicating a possible missing conversation or configuration issue.
  • Suggestions were made to verify API credentials, model access, environment variables (like INNER_API_KEY_FOR_PLUGIN), and model name correctness.
  • You confirmed the issue persists despite these checks and recommendations.

What's Next:

  • Please let me know if this issue is still relevant with the latest version of dify-official-plugins by commenting here to keep the discussion open.
  • Otherwise, this issue will be automatically closed in 5 days.

Thank you for your understanding and contribution!

@dosubot[bot] commented on GitHub (Aug 17, 2025): Hi, @kevin527404691. I'm [Dosu](https://dosu.dev), and I'm helping the dify-official-plugins team manage their backlog and am marking this issue as stale. Issue Summary: - You reported a 404 error "Conversation does not exist" from the Debug Plugin when running an agent node in a Chatflow on Dify v1.1.3 Cloud. - The error occurs specifically when invoking the LLM model, indicating a possible missing conversation or configuration issue. - Suggestions were made to verify API credentials, model access, environment variables (like INNER_API_KEY_FOR_PLUGIN), and model name correctness. - You confirmed the issue persists despite these checks and recommendations. What's Next: - Please let me know if this issue is still relevant with the latest version of dify-official-plugins by commenting here to keep the discussion open. - Otherwise, this issue will be automatically closed in 5 days. Thank you for your understanding and contribution!
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Reference: langgenius/dify-official-plugins#184