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Firecrawl started throwing the error: 'Failed to invoke tool: unhashable type: 'dict'.' #5810

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opened 2026-02-21 18:12:41 -05:00 by yindo · 8 comments
yindo commented 2026-02-21 18:12:41 -05:00
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Originally created by @ugyuji on GitHub (Sep 26, 2024).

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  • This is only for bug report, if you would like to ask a question, please head to Discussions.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report (我已阅读并同意 Language Policy).
  • [FOR CHINESE USERS] 请务必使用英文提交 Issue，否则会被关闭。谢谢！:）
  • Please do not modify this template :) and fill in all the required fields.

Dify version

0.8.3

Cloud or Self Hosted

Cloud, Self Hosted (Docker)

Steps to reproduce

  1. Create a new "Workflow"
  2. Add Firecrawl's "Crawl" tool
  3. Set a "Start URL" variable to "https://dify.ai/"
  4. Run the workflow

✔️ Expected Behavior

No response

❌ Actual Behavior

35b2061a9ead09d037198315f3bd573a
Originally created by @ugyuji on GitHub (Sep 26, 2024). ### 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 0.8.3 ### Cloud or Self Hosted Cloud, Self Hosted (Docker) ### Steps to reproduce 1. Create a new "Workflow" 2. Add Firecrawl's "Crawl" tool 3. Set a "Start URL" variable to "https://dify.ai/" 4. Run the workflow ### ✔️ Expected Behavior _No response_ ### ❌ Actual Behavior <img width="236" alt="35b2061a9ead09d037198315f3bd573a" src="https://github.com/user-attachments/assets/5fca200a-d8df-4fee-af25-53a66bb87a46">
yindo added the 🐞 bug label 2026-02-21 18:12:41 -05:00
yindo closed this issue 2026-02-21 18:12:41 -05:00
yindo commented 2026-02-21 18:12:42 -05:00
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@dosubot[bot] commented on GitHub (Sep 26, 2024):

Hey @ugyuji! I'm here to help you with any bugs, questions, or contributions you have for our project. Let's squash those bugs together! 😊

I found a similar issue that might help you resolve the error "Failed to invoke tool: unhashable type: 'dict'". The error occurs because the tool_parameters dictionary is being used in a context where a hashable type is required. In Python, dictionaries are not hashable and cannot be used as keys in other dictionaries or added to sets.

To resolve this issue, ensure that tool_parameters or any of its contents are not being used in a way that requires them to be hashable. For example, if tool_parameters is being used as a key in another dictionary, you should convert it to a hashable type, such as a tuple of key-value pairs.

Here is the relevant part of the code for reference:

class CrawlTool(BuiltinTool):
    def _invoke(self, user_id: str, tool_parameters: dict[str, Any]) -> ToolInvokeMessage:
        app = FirecrawlApp(
            api_key=self.runtime.credentials["firecrawl_api_key"], base_url=self.runtime.credentials["base_url"]
        )

        scrapeOptions = {}
        payload = {}

        wait_for_results = tool_parameters.get("wait_for_results", True)

        payload["excludePaths"] = get_array_params(tool_parameters, "excludePaths")
        payload["includePaths"] = get_array_params(tool_parameters, "includePaths")
        payload["maxDepth"] = tool_parameters.get("maxDepth")
        payload["ignoreSitemap"] = tool_parameters.get("ignoreSitemap", False)
        payload["limit"] = tool_parameters.get("limit", 5)
        payload["allowBackwardLinks"] = tool_parameters.get("allowBackwardLinks", False)
        payload["allowExternalLinks"] = tool_parameters.get("allowExternalLinks", False)
        payload["webhook"] = tool_parameters.get("webhook")

        scrapeOptions["formats"] = get_array_params(tool_parameters, "formats")
        scrapeOptions["headers"] = get_json_params(tool_parameters, "headers")
        scrapeOptions["includeTags"] = get_array_params(tool_parameters, "includeTags")
        scrapeOptions["excludeTags"] = get_array_params(tool_parameters, "excludeTags")
        scrapeOptions["onlyMainContent"] = tool_parameters.get("onlyMainContent", False)
        scrapeOptions["waitFor"] = tool_parameters.get("waitFor", 0)
        scrapeOptions = {k: v for k, v in scrapeOptions.items() if v not in (None, "")}
        payload["scrapeOptions"] = scrapeOptions or None

        payload = {k: v for k, v in payload.items() if v not in (None, "")}

        crawl_result = app.crawl_url(url=tool_parameters["url"], wait=wait_for_results, **payload)

        return self.create_json_message(crawl_result)

Ensure that tool_parameters is not being used in a way that requires it to be hashable, and the error should be resolved. For instance, the scrapeOptions and payload dictionaries are filtered to remove None or empty values before being used, which helps avoid such issues [1][2][3].

Additionally, you might find it helpful to look at similar issues and discussions:

To continue talking to Dosu, mention @dosu.

@dosubot[bot] commented on GitHub (Sep 26, 2024): <!-- Greeting --> Hey @ugyuji! I'm here to help you with any bugs, questions, or contributions you have for our project. Let's squash those bugs together! 😊 <!-- Answer --> I found a similar issue that might help you resolve the error "Failed to invoke tool: unhashable type: 'dict'". The error occurs because the `tool_parameters` dictionary is being used in a context where a hashable type is required. In Python, dictionaries are not hashable and cannot be used as keys in other dictionaries or added to sets. To resolve this issue, ensure that `tool_parameters` or any of its contents are not being used in a way that requires them to be hashable. For example, if `tool_parameters` is being used as a key in another dictionary, you should convert it to a hashable type, such as a tuple of key-value pairs. Here is the relevant part of the code for reference: ```python class CrawlTool(BuiltinTool): def _invoke(self, user_id: str, tool_parameters: dict[str, Any]) -> ToolInvokeMessage: app = FirecrawlApp( api_key=self.runtime.credentials["firecrawl_api_key"], base_url=self.runtime.credentials["base_url"] ) scrapeOptions = {} payload = {} wait_for_results = tool_parameters.get("wait_for_results", True) payload["excludePaths"] = get_array_params(tool_parameters, "excludePaths") payload["includePaths"] = get_array_params(tool_parameters, "includePaths") payload["maxDepth"] = tool_parameters.get("maxDepth") payload["ignoreSitemap"] = tool_parameters.get("ignoreSitemap", False) payload["limit"] = tool_parameters.get("limit", 5) payload["allowBackwardLinks"] = tool_parameters.get("allowBackwardLinks", False) payload["allowExternalLinks"] = tool_parameters.get("allowExternalLinks", False) payload["webhook"] = tool_parameters.get("webhook") scrapeOptions["formats"] = get_array_params(tool_parameters, "formats") scrapeOptions["headers"] = get_json_params(tool_parameters, "headers") scrapeOptions["includeTags"] = get_array_params(tool_parameters, "includeTags") scrapeOptions["excludeTags"] = get_array_params(tool_parameters, "excludeTags") scrapeOptions["onlyMainContent"] = tool_parameters.get("onlyMainContent", False) scrapeOptions["waitFor"] = tool_parameters.get("waitFor", 0) scrapeOptions = {k: v for k, v in scrapeOptions.items() if v not in (None, "")} payload["scrapeOptions"] = scrapeOptions or None payload = {k: v for k, v in payload.items() if v not in (None, "")} crawl_result = app.crawl_url(url=tool_parameters["url"], wait=wait_for_results, **payload) return self.create_json_message(crawl_result) ``` Ensure that `tool_parameters` is not being used in a way that requires it to be hashable, and the error should be resolved. For instance, the `scrapeOptions` and `payload` dictionaries are filtered to remove `None` or empty values before being used, which helps avoid such issues <sup>[[1]](https://github.com/langgenius/dify/blob/main/api/core/tools/provider/builtin/firecrawl/tools/crawl_job.py)</sup><sup>[[2]](https://github.com/langgenius/dify/blob/main/api/core/tools/provider/builtin/firecrawl/tools/crawl.py)</sup><sup>[[3]](https://github.com/langgenius/dify/blob/main/api/core/tools/provider/builtin/firecrawl/firecrawl_appx.py)</sup>. Additionally, you might find it helpful to look at similar issues and discussions: - [Expecting value: line 1 column 1 (char 0)](https://github.com/langgenius/dify/discussions/8604) (Unsolved discussion) <sup>[[4]](https://github.com/langgenius/dify/discussions/8604)</sup> - [0.8.3 parallel Workflow run failed](https://github.com/langgenius/dify/issues/8731) (Closed issue) <sup>[[5]](https://github.com/langgenius/dify/issues/8731)</sup> - [raise err when run workflow as tool](https://github.com/langgenius/dify/issues/5211) (Closed issue) <sup>[[6]](https://github.com/langgenius/dify/issues/5211)</sup> <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.*
yindo commented 2026-02-21 18:12:42 -05:00
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@hjlarry commented on GitHub (Sep 26, 2024):

I can't reproduce. Can you upload your workflow DSL?

@hjlarry commented on GitHub (Sep 26, 2024): I can't reproduce. Can you upload your workflow DSL?
yindo commented 2026-02-21 18:12:42 -05:00
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@Halflifefa commented on GitHub (Sep 26, 2024):

The same question, the process used is the official template <Interview Preparation (Conditional Parallel)>
Key obtained from https://www.firecrawl.dev/app/api-keys

@Halflifefa commented on GitHub (Sep 26, 2024): The same question, the process used is the official template <Interview Preparation (Conditional Parallel)> Key obtained from https://www.firecrawl.dev/app/api-keys
yindo commented 2026-02-21 18:12:42 -05:00
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@hjlarry commented on GitHub (Sep 26, 2024):

now I reproduce it in the cloud version,
but in my local newest branch, it works, maybe some PR already fix this

@hjlarry commented on GitHub (Sep 26, 2024): now I reproduce it in the cloud version, but in my local newest branch, it works, maybe some PR already fix this
yindo commented 2026-02-21 18:12:42 -05:00
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@ugyuji commented on GitHub (Sep 26, 2024):

Here's the DSL content:

app:
  description: ''
  icon: 🤖
  icon_background: '#FFEAD5'
  mode: workflow
  name: Test Workflow
  use_icon_as_answer_icon: false
kind: app
version: 0.1.2
workflow:
  conversation_variables: []
  environment_variables: []
  features:
    file_upload:
      image:
        enabled: false
        number_limits: 3
        transfer_methods:
        - local_file
        - remote_url
    opening_statement: ''
    retriever_resource:
      enabled: false
    sensitive_word_avoidance:
      enabled: false
    speech_to_text:
      enabled: false
    suggested_questions: []
    suggested_questions_after_answer:
      enabled: false
    text_to_speech:
      enabled: false
      language: ''
      voice: ''
  graph:
    edges:
    - data:
        isInIteration: false
        sourceType: start
        targetType: tool
      id: 1712630129285-source-1727334022276-target
      source: '1712630129285'
      sourceHandle: source
      target: '1727334022276'
      targetHandle: target
      type: custom
      zIndex: 0
    - data:
        isInIteration: false
        sourceType: tool
        targetType: end
      id: 1727334022276-source-1713020453724-target
      source: '1727334022276'
      sourceHandle: source
      target: '1713020453724'
      targetHandle: target
      type: custom
      zIndex: 0
    nodes:
    - data:
        desc: ''
        selected: false
        title: Start
        type: start
        variables:
        - label: url
          max_length: 256
          options: []
          required: true
          type: text-input
          variable: url
      height: 90
      id: '1712630129285'
      position:
        x: 30
        y: 427
      positionAbsolute:
        x: 30
        y: 427
      selected: true
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
        desc: ''
        outputs:
        - value_selector:
          - '1727334022276'
          - text
          variable: output
        selected: false
        title: End
        type: end
      height: 90
      id: '1713020453724'
      position:
        x: 638
        y: 427
      positionAbsolute:
        x: 638
        y: 427
      selected: false
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
        desc: ''
        provider_id: firecrawl
        provider_name: firecrawl
        provider_type: builtin
        selected: false
        title: Crawl
        tool_configurations:
          allowBackwardLinks: 0
          allowExternalLinks: 0
          excludePaths: null
          excludeTags: null
          formats: null
          headers: null
          ignoreSitemap: 1
          includePaths: null
          includeTags: null
          limit: 5
          maxDepth: 2
          onlyMainContent: 0
          waitFor: null
          wait_for_results: 1
          webhook: null
        tool_label: Crawl
        tool_name: crawl
        tool_parameters:
          url:
            type: mixed
            value: '{{#1712630129285.url#}}'
        type: tool
      height: 454
      id: '1727334022276'
      position:
        x: 334
        y: 427
      positionAbsolute:
        x: 334
        y: 427
      selected: false
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    viewport:
      x: 307.80000000000007
      y: -8.799999999999955
      zoom: 0.7

The same error can be seen in both local and cloud environments.

@ugyuji commented on GitHub (Sep 26, 2024): Here's the DSL content: ```yaml app: description: '' icon: 🤖 icon_background: '#FFEAD5' mode: workflow name: Test Workflow use_icon_as_answer_icon: false kind: app version: 0.1.2 workflow: conversation_variables: [] environment_variables: [] features: file_upload: image: enabled: false number_limits: 3 transfer_methods: - local_file - remote_url opening_statement: '' retriever_resource: enabled: false sensitive_word_avoidance: enabled: false speech_to_text: enabled: false suggested_questions: [] suggested_questions_after_answer: enabled: false text_to_speech: enabled: false language: '' voice: '' graph: edges: - data: isInIteration: false sourceType: start targetType: tool id: 1712630129285-source-1727334022276-target source: '1712630129285' sourceHandle: source target: '1727334022276' targetHandle: target type: custom zIndex: 0 - data: isInIteration: false sourceType: tool targetType: end id: 1727334022276-source-1713020453724-target source: '1727334022276' sourceHandle: source target: '1713020453724' targetHandle: target type: custom zIndex: 0 nodes: - data: desc: '' selected: false title: Start type: start variables: - label: url max_length: 256 options: [] required: true type: text-input variable: url height: 90 id: '1712630129285' position: x: 30 y: 427 positionAbsolute: x: 30 y: 427 selected: true sourcePosition: right targetPosition: left type: custom width: 244 - data: desc: '' outputs: - value_selector: - '1727334022276' - text variable: output selected: false title: End type: end height: 90 id: '1713020453724' position: x: 638 y: 427 positionAbsolute: x: 638 y: 427 selected: false sourcePosition: right targetPosition: left type: custom width: 244 - data: desc: '' provider_id: firecrawl provider_name: firecrawl provider_type: builtin selected: false title: Crawl tool_configurations: allowBackwardLinks: 0 allowExternalLinks: 0 excludePaths: null excludeTags: null formats: null headers: null ignoreSitemap: 1 includePaths: null includeTags: null limit: 5 maxDepth: 2 onlyMainContent: 0 waitFor: null wait_for_results: 1 webhook: null tool_label: Crawl tool_name: crawl tool_parameters: url: type: mixed value: '{{#1712630129285.url#}}' type: tool height: 454 id: '1727334022276' position: x: 334 y: 427 positionAbsolute: x: 334 y: 427 selected: false sourcePosition: right targetPosition: left type: custom width: 244 viewport: x: 307.80000000000007 y: -8.799999999999955 zoom: 0.7 ``` The same error can be seen in both local and cloud environments.
yindo commented 2026-02-21 18:12:42 -05:00
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@n-asuy commented on GitHub (Sep 27, 2024):

I have a same error with following cases:

  • Dify: Cloud, Self Hosted w/ latest branch.
  • FireCrawl: Cloud, Self Hosted (Docker) w/ latest branch.

My workaround is to use JinaReader instead at this moment.

CleanShot 2024-09-27 at 15 54 43@2x

@n-asuy commented on GitHub (Sep 27, 2024): I have a same error with following cases: - Dify: Cloud, Self Hosted w/ latest branch. - FireCrawl: Cloud, Self Hosted (Docker) w/ latest branch. My workaround is to use JinaReader instead at this moment. ![CleanShot 2024-09-27 at 15 54 43@2x](https://github.com/user-attachments/assets/6c7e59cc-6c8e-4898-8d1f-7ad1eec05e23)
yindo commented 2026-02-21 18:12:42 -05:00
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@hjlarry commented on GitHub (Sep 27, 2024):

this PR raise the issue https://github.com/langgenius/dify/pull/8391
and this PR fix it https://github.com/langgenius/dify/pull/8666
please wait the new version or git pull latest commit to fix this.

@hjlarry commented on GitHub (Sep 27, 2024): this PR raise the issue https://github.com/langgenius/dify/pull/8391 and this PR fix it https://github.com/langgenius/dify/pull/8666 please wait the new version or git pull latest commit to fix this.
yindo commented 2026-02-21 18:12:42 -05:00
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@JustinWangJP commented on GitHub (Sep 27, 2024):

I also face the same problem. When will you publish a new version?

@JustinWangJP commented on GitHub (Sep 27, 2024): I also face the same problem. When will you publish a new version?
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