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Error occurred when creating the knowledge base "can only concatenate str （not "NoneType"） to str" #12574

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opened 2026-02-21 19:08:02 -05:00 by yindo · 2 comments
yindo commented 2026-02-21 19:08:02 -05:00
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Originally created by @Tingfing6 on GitHub (Apr 6, 2025).

Self Checks

  • 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

x

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

Image

✔️ Expected Behavior

No response

❌ Actual Behavior

No response

Originally created by @Tingfing6 on GitHub (Apr 6, 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 x ### Cloud or Self Hosted Self Hosted (Docker) ### Steps to reproduce <img width="1363" alt="Image" src="https://github.com/user-attachments/assets/5e9aa9f7-11f9-471e-9ac6-d39333a495c8" /> ### ✔️ Expected Behavior _No response_ ### ❌ Actual Behavior _No response_
yindo added the 🐞 bug label 2026-02-21 19:08:02 -05:00
yindo closed this issue 2026-02-21 19:08:02 -05:00
yindo commented 2026-02-21 19:08:02 -05:00
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@crazywoola commented on GitHub (Apr 7, 2025):

https://github.com/langgenius/dify/blob/0277a37fcad5ad86aeb239485c27fffd5cd90043/CONTRIBUTING.md#L23-L33

Please provide the correct version number.

@crazywoola commented on GitHub (Apr 7, 2025): https://github.com/langgenius/dify/blob/0277a37fcad5ad86aeb239485c27fffd5cd90043/CONTRIBUTING.md#L23-L33 Please provide the correct version number.
yindo commented 2026-02-21 19:08:03 -05:00
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@Tingfing6 commented on GitHub (Apr 10, 2025):

dify/CONTRIBUTING.md

Lines 23 to 33 in 0277a37

Bug reports

Important

Please make sure to include the following information when submitting a bug report:

  • A clear and descriptive title
  • A detailed description of the bug, including any error messages
  • Steps to reproduce the bug
  • Expected behavior
  • Logs, if available, for backend issues, this is really important, you can find them in docker-compose logs
  • Screenshots or videos, if applicable
    Please provide the correct version number.请提供正确的版本号。

1.1.3

Image

@Tingfing6 commented on GitHub (Apr 10, 2025): > [dify/CONTRIBUTING.md](https://github.com/langgenius/dify/blob/0277a37fcad5ad86aeb239485c27fffd5cd90043/CONTRIBUTING.md#L23-L33) > > Lines 23 to 33 in [0277a37](/langgenius/dify/commit/0277a37fcad5ad86aeb239485c27fffd5cd90043) > > ### Bug reports > > > [!IMPORTANT] > > Please make sure to include the following information when submitting a bug report: > > - A clear and descriptive title > - A detailed description of the bug, including any error messages > - Steps to reproduce the bug > - Expected behavior > - **Logs**, if available, for backend issues, this is really important, you can find them in docker-compose logs > - Screenshots or videos, if applicable > Please provide the correct version number.请提供正确的版本号。 1.1.3 ![Image](https://github.com/user-attachments/assets/5c34a8fc-31a8-4801-8901-910c58d70ddd)
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Reference: langgenius/dify#12574
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