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dify - 💡(How to fix) Fix Add Support for multiselect document, image and custom together [1 participants]

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langgenius/dify#35410•Fetched 2026-04-20 12:16:07
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Dify version

1.13.3

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

dify can select both document and image <img width="383" height="376" alt="Image" src="https://github.com/user-attachments/assets/9646c6ed-916f-4bfa-82cd-42c71929859c" />

but i want to add a custom file extension *.rtf and it can only select custom, so i had to add all image and document extension in custom <img width="359" height="659" alt="Image" src="https://github.com/user-attachments/assets/e611b9b0-d948-4ed7-aeac-60b73d21fcfb" />

when i upload an *.xlsx file, first question is OK, but if i turn on memory in the question classifier, i will get file validation failed for file in the next question <img width="684" height="318" alt="Image" src="https://github.com/user-attachments/assets/b46a7329-2acd-4873-bbe6-c4e90af744e0" />

✔️ Expected Behavior

hope to support multiselect for document, image and custom

❌ Actual Behavior

No response

extent analysis

TL;DR

The issue can be mitigated by modifying the file extension settings to support multiselect for document, image, and custom file types.

Guidance

  • Review the current file extension settings in the Dify configuration to understand how file types are being handled.
  • Consider adding a custom file extension for *.rtf and other required file types to the existing document or image categories.
  • Investigate the question classifier settings to determine why file validation is failing when memory is enabled.
  • Check the Dify version 1.13.3 documentation to see if there are any known limitations or workarounds for file extension handling.

Example

No code snippet is provided as the issue does not contain sufficient technical details to create a specific example.

Notes

The issue may be related to the current implementation of file extension handling in Dify, and modifying the configuration settings may resolve the issue. However, without further technical details, it is difficult to provide a definitive solution.

Recommendation

Apply workaround: Modify the file extension settings to support multiselect for document, image, and custom file types, as this may resolve the issue without requiring an upgrade to a fixed version.

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#api#ssr#embedding generation#cache error#pipeline error

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