[Question] How to build

[hyunseok-yang]

Hello, Grey.

I'm trying to build a mapf code. But It's hard to build or run because this is my first experience of Rust code :) Could you let me know how to build a code?

[mxgrey]

We definitely need to add some instructions/links to the README for how to get started with Rust. I'll keep this issue open until we've done that, but in the meantime, you can find instructions on getting started with Rust here: https://www.rust-lang.org/learn/get-started

Instructions for installing Rust can be found here: https://www.rust-lang.org/tools/install

After that you can run $ cargo build to build the library.

There's an example you can run using $ cargo run --release --example grid_planner although some of the controls for the example aren't finished yet on the main branch.

[hyunseok-yang]

hi, Thanks for your reply :)

I tried to build with stable version of toolchain. Then I got this message.

After I changed to nightly version of toolchain. Then I got this message.

[arjo129]

Have you tried building with the nightly toolchain?

On Tue, Apr 18, 2023 at 11:24 AM Hyunseok @.***> wrote:

I tried to build with stable version of toolchain. Then I got this message.

[image: image] https://user-images.githubusercontent.com/21001946/232662805-56c1ca60-00e1-4a6d-a705-ffddcd8b4789.png

After I changed to nightly version of toolchain. Then I got this message.

[image: image] https://user-images.githubusercontent.com/21001946/232662995-c1f48899-19f5-4e6e-8838-a1632039e337.png

— Reply to this email directly, view it on GitHub https://github.com/open-rmf/mapf/issues/12#issuecomment-1512380422, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEEMQGMP5Q6GM4GL46LX63XBYCPRANCNFSM6AAAAAAXAUIR3E . You are receiving this because you are subscribed to this thread.Message ID: @.***>

[hyunseok-yang]

Have you tried building with the nightly toolchain? … On Tue, Apr 18, 2023 at 11:24 AM Hyunseok @.> wrote: I tried to build with stable version of toolchain. Then I got this message. [image: image] https://user-images.githubusercontent.com/21001946/232662805-56c1ca60-00e1-4a6d-a705-ffddcd8b4789.png After I changed to nightly version of toolchain. Then I got this message. [image: image] https://user-images.githubusercontent.com/21001946/232662995-c1f48899-19f5-4e6e-8838-a1632039e337.png — Reply to this email directly, view it on GitHub <#12 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEEMQGMP5Q6GM4GL46LX63XBYCPRANCNFSM6AAAAAAXAUIR3E . You are receiving this because you are subscribed to this thread.Message ID: @.>

Hi!

Yes, I tiried with nightly toolchain then I got the error message like above. I mean second screenshot.

[arjo129]

Have you tried adding #![feature(impl_trait_in_assoc_type)] to your lib.rs of the crate you are building?

On Tue, Apr 18, 2023 at 12:10 PM Hyunseok @.***> wrote:

Have you tried building with the nightly toolchain? … <#m-549390114995481886> On Tue, Apr 18, 2023 at 11:24 AM Hyunseok @.> wrote: I tried to build with stable version of toolchain. Then I got this message. [image: image] https://user-images.githubusercontent.com/21001946/232662805-56c1ca60-00e1-4a6d-a705-ffddcd8b4789.png https://user-images.githubusercontent.com/21001946/232662805-56c1ca60-00e1-4a6d-a705-ffddcd8b4789.png After I changed to nightly version of toolchain. Then I got this message. [image: image] https://user-images.githubusercontent.com/21001946/232662995-c1f48899-19f5-4e6e-8838-a1632039e337.png https://user-images.githubusercontent.com/21001946/232662995-c1f48899-19f5-4e6e-8838-a1632039e337.png — Reply to this email directly, view it on GitHub <#12 (comment) https://github.com/open-rmf/mapf/issues/12#issuecomment-1512380422>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEEMQGMP5Q6GM4GL46LX63XBYCPRANCNFSM6AAAAAAXAUIR3E https://github.com/notifications/unsubscribe-auth/AAEEMQGMP5Q6GM4GL46LX63XBYCPRANCNFSM6AAAAAAXAUIR3E . You are receiving this because you are subscribed to this thread.Message ID: @.>

Hi!

Yes, I tiried with nightly toolchain then I got the error message like above. I mean second screenshot.

— Reply to this email directly, view it on GitHub https://github.com/open-rmf/mapf/issues/12#issuecomment-1512406730, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEEMQHUHYJON5VL76W7XF3XBYH2HANCNFSM6AAAAAAXAUIR3E . You are receiving this because you commented.Message ID: @.***>

[mxgrey]

I believe I understand what's happening.

A recent update to Rust has changed the naming of the feature gates for an unstable feature that we're using. @arjo129 and I haven't noticed this because we installed our versions of Rust 3+ months ago and don't have the latest version of nightly. @hyunseok-yang just installed a fresh version of Rust, so he's experiencing this error.

I just ran rustup update and now I see the same error as @hyunseok-yang . I'll make a quick PR to fix this.

[mxgrey]

This PR should fix the issue: https://github.com/open-rmf/mapf/pull/13

This is unfortunately one of the risks of using unstable language features, but I think the payoff is worth it. This feature in particular gives us a huge amount of flexibility when implementing custom planning domains without hurting performance.

We should copy what we've done for the site editor and run nightly CI to check if an upstream update to Rust has broken the build.

[hyunseok-yang]

This PR should fix the issue: #13

This is unfortunately one of the risks of using unstable language features, but I think the payoff is worth it. This feature in particular gives us a huge amount of flexibility when implementing custom planning domains without hurting performance.

We should copy what we've done for the site editor and run nightly CI to check if an upstream update to Rust has broken the build.

Oh, not it worked. The build was fine :)

[hyunseok-yang]

example also works well :)