✔ Compiling a Roc program on Windows · beginners

Hi experts! I have installed and compiled Roc successfully on (native) Windows 11. roc repl and roc edit work. When trying to compile any Roc program, I get the following message:

I was expecting this file to exist:

    C:\Users\ivoba\AppData\Roaming\Roc\packages\github.com/roc-lang/basic-cli/releases/download/0.3.2\tE4xS_zLdmmxmHwHih9kHWQ7fsXtJr7W7h3425-eZFk\windows-x86_64.rh

However, it was not there!

        Note: If the platform does have an .rh1 file but no .rh file, it's because it's been built with an older version of roc. Contact the author to release a new build of the platform using a roc release newer than March 21 2023.


If you have the platform's source code locally, you may be able to generate it by re-running this command omitting --prebuilt-platform

Anton (Jun 21 2023 at 12:53):

Anton (Jun 21 2023 at 12:54):

Heads up, I believe dbg and testing don't work on windows yet and you may encounter some segmentation faults.

Ivo Balbaert (Jun 21 2023 at 13:34):

Thanks Anton! Sorry to bother you again, I believe Roc finds the local package now. But now I get this error:

roc helloWorldW.roc
🔨 Rebuilding platform...
warning: ignoring debug info with an invalid version (0) in app
An internal compiler expectation was broken.
This is definitely a compiler bug.
Please file an issue here: https://github.com/roc-lang/roc/issues/new/choose
thread '<unnamed>' panicked at 'Error:
    Failed to rebuild src/main.rs:
        The executed command was:
            rustup run nightly-2022-10-30 cargo build --bin host
        stderr of that command:
            error: toolchain 'nightly-2022-10-30-x86_64-pc-windows-msvc' is not installed
', crates\compiler\build\src\link.rs:1483:21
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
thread 'main' panicked at 'Failed to (re)build platform.: Any { .. }', crates\compiler\build\src\program.rs:972:46

Do I really have to install such an old Rust toolchain version? These are the ones installed on my machine:
installed toolchains

Anton (Jun 21 2023 at 13:36):

Ivo Balbaert (Jun 21 2023 at 14:18):

Thanks Anton, that worked, but I immediately get an error:
roc helloWorldW.roc
:hammer: Rebuilding platform...
warning: ignoring debug info with an invalid version (0) in app
An internal compiler expectation was broken.
This is definitely a compiler bug.
Please file an issue here: https://github.com/roc-lang/roc/issues/new/choose
thread 'main' panicked at 'running expects does not currently work on windows', crates\cli\src\lib.rs:1237:17
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace

Indeed probably still too early to stark working on Windows :smile: , but things have advanced a lot since last year.

Anton (Jun 21 2023 at 14:33):

roc helloWorldW.roc will basically use roc dev helloWorldW.rocwhich is the "mode" that runs the expect tests, using roc run helloWorldW.roc instead could work

Stream: beginners

Topic: ✔ Compiling a Roc program on Windows

Ivo Balbaert (Jun 21 2023 at 12:48):