Settings_save_one() return -2

[Chaoyue Ying]

settings_test.rar

I create a project to learn details of settings module and code as above.

When the code running ,I try to trigger settings_save_one to save data,the function return -2.

How can I repair it?

[Charlie]

Can you provide more information about your firmware and hardware setup?

Like NCS version, which sample you modified with, which chip or DK are you using?

[Chaoyue Ying]

I using NCS v2.6.0 with nRF52840DK.

The code I upload at the start of the ticket,not a sample.