Incorrect chrono version dependency

[AndrolGenhald]

Currently only chrono 0.4 is required, however use_calender uses chrono::Weekday::days_since which was added in 0.4.38. This causes a compilation error if an earlier version of chrono is used.

[maccesch]

I see! Thanks for reporting

[emilbonnek]

I see that this was solved, and that the 0.16.0 release has:

chrono = "=0.4.40"

But I am getting errors like this in my workspace:

error: failed to select a version for `chrono`.
    ... required by package `leptos-use v0.16.0`
    ... which satisfies dependency `leptos-use = "^0.16.0"` of package `xxx v0.1.0 (path\xxx)`
versions that meet the requirements `=0.4.40` are: 0.4.40

all possible versions conflict with previously selected packages.

  previously selected package `chrono v0.4.41`
    ... which satisfies dependency `chrono = "^0.4.41"` of package `yyy v0.1.0 (path\yyy)`

failed to select a version for `chrono` which could resolve this conflict
Error: recursive dependency update failed

I don't know the best practices in rust, so pardon if I am out of line - but could you maybe do something like this instead:

chrono = ">=0.4.38, <0.5"

That way I can pick my own chrono version as well.

[maccesch]

Sorry for the troubles. The thing is, they released a breaking change in 0.4.41 that conflicts with time. I guess we could try sth like >=0.4.38, <0.4.41.

[emilbonnek]

Oh okay.

Actually I am realizing I am not really using chrono inside use_leptos at all, since I am not using use_calendar. Maybe you could even make chrono optional and gate it behind the use_calendar feature?

chrono = { version = "=0.4.40", optional = true }
use_calendar = ["dep:chrono"]