Adding new doc to Notion binding KB causing "Process rule pre_processing_rules is required" error

[zhongzishi]

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Dify version

1.0.1

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

• hitting Add Pages button on a Notion binding KB
• select a Notion doc from list then click on Save button
• an error message "Process rule pre_processing_rules is required" shows

BTW, I don't see the same error while adding pages to a non-Notion-binding KB, the latter works good

✔️ Expected Behavior

By clicking on the Save button, show pre-processing screen same as file-upload type of KB for doc pre_processing

❌ Actual Behavior

Showing an error message "Process rule pre_processing_rules is required"

[dosubot[bot]]

@zhongzishi Hello there! I'm here to assist you with any bugs, questions, or contributions. Let's work together to resolve your issue.

The error message "Process rule pre_processing_rules is required" is triggered when the pre_processing_rules are not properly defined in the configuration. This is a required component of the process rule configuration in the Dify codebase, specifically in the api/services/dataset_service.py file. The error occurs if the pre_processing_rules are not provided when the mode is not set to "automatic" ^[1].

To resolve this issue, ensure that the pre_processing_rules are correctly configured in your Notion binding KB setup. You might need to check the configuration settings for the Notion binding KB to ensure that the pre_processing_rules are included and properly defined, similar to how they are set up for non-Notion binding KBs. This typically involves specifying rules like "remove_extra_spaces" and "remove_urls_emails" in the configuration ^[2].

To continue talking to Dosu, mention @dosu.

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[lwbiuchsjk]

Same bug. And I cannot find the page to set pre_processing_rule to "automatic", and just "remove_extra_spaces" and "remove_urls_emails". pls help.

[HayatoFujikoshi]

@dosu I’d like to report that I'm also experiencing this issue.

• Deployment: Cloud
• Data source: Notion

Here’s what’s happening:

1. I connect a KB to Notion and successfully add the first page.
2. When I try to add a second page from Notion to the same KB, I get the error:Process rule pre_processing_rules is required
3. However, in the UI, there is no way to configure or see the pre_processing_rules when adding pages from Notion.
   This makes it impossible to fix the issue from the frontend.

File-based KBs work perfectly fine — they allow setting pre-processing rules before uploading.
This behavior seems inconsistent and likely a UI bug specific to Notion-based KBs.

I hope this can be fixed in the upcoming release. Let me know if any more details are needed!

[someonewating]

I encountered the same error in dify 1.1.3 (docker environment). Please help developers.

[spkobayashi]

The same error persists in version 1.3.1.

[Limsym]

i encounter the same problem. i like dify so much, pls email me if the problem has been solved. thanks!!!

[Emersh0w]

Hello! I'm also facing the same bug, it'd be cool if Dify told us how to solve it.