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raphamorim / wasm-and-rust

WebAssembly and Rust: A Web Love Story
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When following the instructions in the README, "Build for browsers" fails #13

Open fbecart opened 6 years ago

fbecart commented 6 years ago

Following the instructions in README.md, the following step failed on my machine:

cargo build --target=wasm32-unknown-emscripten --release

I had to add the target (once again) to make it work:

rustup target add wasm32-unknown-emscripten

The instructions ask to add the target, but somehow it gets invalidated later. Maybe because we switch to nightly afterwards? I'm new to Rust, so this is just a guess. Once the issue understood, I'll be happy to submit a PR to fix it.

robquinn commented 5 years ago

@fbecart This also fails on my machine.

When I run:

$ cargo build --target=wasm32-unknown-emscripten --release --verbose

I get this output:

error: dep-info invalid

I have no idea how to fix this.

Things I have tried: a) adding the compilation target: "$ rustup target add wasm32-unknown-emscripten" b) ensuring emsdk is installed and activated, and it is ( "$ emcc -v" ) c) google searches for the meaning of "error: dep-info invalid"... tho still no idea what it means d) checking the rust code for any errors. I'm using the cloned repo, so I don't think this is the case. e) crying. felt a lot better, but the build still fails.

Did you get this to work? Any ideas or suggestions?

Thanks for your time in reading this, and otherwise have a great day :)

fbecart commented 5 years ago

Hi @robitwtms, I won't be able to help you on this topic, which could be quite specific to your environment.

Given the pace at which this space has been evolving in the past couple years and the inactivity of this repo, I would move on to other resources.

For instance, it's now possible to bypass emscripten using the wasm32-unknown-unknown toolchain. About a year ago I was exploring that space and eventually ended up experimenting with https://github.com/koute/cargo-web and https://github.com/yewstack/yew. Depending on what you're trying to achieve, these resources might be helpful.

raphamorim commented 5 years ago

Hm, gonna do a further investigation for your issue @robitwtms. Have you tried @fbecart approach for his issue (re-adding target)?