Command "carton dev" failed

[renaudjenny]

Hi there,

First of all, thanks for this amazing project, it looks so promising!
Unfortunately, I wasn't able to test it, I don't know what I'm doing wrong, I think I followed all instructions but I got this error:

➜  TokamakApp carton dev
Polyfill integrity verified: /Users/renaudjenny/.carton/static/dev.js
Inferring basic settings...
- swift executable: /Users/renaudjenny/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-06-12-a/usr/bin/swift
Swift version 5.3-dev (LLVM b54b6b832e, Swift 4bb1458ec4)
Target: x86_64-apple-darwin19.5.0

Parsing package manifest: /Users/renaudjenny/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-06-12-a/usr/bin/swift package dump-package
- development binary to serve: /Users/renaudjenny/Sources/TokamakApp/.build/wasm32-unknown-wasi/debug/TokamakApp

Building the project before spinning up a server...
/Users/renaudjenny/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-06-12-a/usr/bin/swift build -c debug --product TokamakApp --enable-test-discovery --destination /Users/renaudjenny/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-06-12-a.json
/Users/renaudjenny/Sources/TokamakApp/Sources/TokamakApp/main.swift:9:16: error: cannot find 'DOMRenderer' in scope
let renderer = DOMRenderer(ContentView(), div)
               ^~~~~~~~~~~
Process failed, check the build process output above.

It looks like a dependency isn't updated or something, but if I try

➜  TokamakApp swift package update
/Users/renaudjenny/Sources/TokamakApp: error: package at '/Users/renaudjenny/Sources/TokamakApp' is using Swift tools version 5.3.0 but the installed version is 5.2.0

And it's right, the Package.swift is meant for Swift 5.3.
However, In the README it's specified that the Xcode-select should be the one from the current stable Xcode version (at the time of this ticket is written it's 11.6, so Swift 5.2, but maybe I'm wrong and I should switch my Swift version?).

I also tried to clone the project and carton dev, but it failed as well for another reason:

➜  Tokamak git:(main) carton dev
Polyfill integrity verified: /Users/renaudjenny/.carton/static/dev.js
Inferring basic settings...
- swift executable: /Users/renaudjenny/.carton/sdk/wasm-5.3-SNAPSHOT-2020-07-27-a/usr/bin/swift
Swift version 5.3-dev (LLVM 6fca49be4a, Swift bf51b9a7e6)
Target: x86_64-apple-darwin19.5.0

Parsing package manifest: /Users/renaudjenny/.carton/sdk/wasm-5.3-SNAPSHOT-2020-07-27-a/usr/bin/swift package dump-package
Failed to disambiguate the development product
Pass one of ["TokamakDemo", "TokamakStaticDemo"] to the --product option
Error: No executable product to build could be inferred

The second error sounds easier to fix, but I really don't know where to look 🥺. Sorry that I can't really help as I'm very new to the project.
But let me know, I would be really happy to give a hand at some point.

Thanks folks!

[carson-katri]

I think the template is outdated. Try this in main:

struct MyApp: App {
  var body: some Scene {
    WindowGroup("MyApp") {
      ContentView()
    }
  }
}

MyApp.main()

[carson-katri]

For running the demo you can do carton dev --product TokamakDemo

[renaudjenny]

Both suggestion are working fine!
Thanks a lot!