Confusing examples and instructions

[k0pernicus]

I wanted to use Swift for WASM and found out your book.

After installing the toolchain & Swift-SDK for WASM I found out that the "Hello, world" example does not work because of a

error: missing external dependency '.../usr/lib/swift/wasi/static-executable-args.lnk'

However, in your "Troubleshooting" setting, you explicitly say:

You may encounter this error while building with Swift SDK for WebAssembly and swiftc driver command. Unfortunately, Swift SDK does not support building with swiftc command yet, so you need to use swift build Swift Package Manager command instead.

First question: Does this means the "Hello, world" example is outdated?

After that I created a Swift package, and tried to build it using

swift build --swift-sdk 6.0-SNAPSHOT-2024-10-10-a-wasm32-unknown-wasi
but I had this error:

> Building for debugging...
error: emit-module command failed with exit code 1 (use -v to see invocation)
<unknown>:0: error: module compiled with Swift 6.0.3 cannot be imported by the Swift 6.1 compiler: /Users/antonin/Library/org.swift.swiftpm/swift-sdks/swift-wasm-6.0-SNAPSHOT-2024-10-10-a-wasm32-unknown-wasi.artifactbundle/6.0-SNAPSHOT-2024-10-10-a-wasm32-unknown-wasi/wasm32-unknown-wasi/swift.xctoolchain/usr/lib/swift_static/wasi/Swift.swiftmodule/wasm32-unknown-wasi.swiftmodule

Unfortunately my swift version is a 6.1-DEV compiler version:

> which swift
/Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2024-10-08-a.xctoolchain/usr/bin/swift

Second question: Did I missed something in the book to handle this error?

[kateinoigakukun]

You need to use 6.0 development snapshot toolchain instead of main (6.1) development snapshot.

[k0pernicus]

Thanks, that solves the 2nd question (problem).

[kateinoigakukun]

The hello world example seems outdated. It only works with non-Swift SDK installation

[k0pernicus]

I can work on checking the documentation if you want, and make a PR with some changes based on my experience.
Please let me know if this could be useful for you & community.

[kateinoigakukun]

Yes, it definitely helps!