symbol(s) not found for architecture x86_64

[j-f1]

With the Tokamak demo, a clean .build/wasm32-unknown-wasi directory, and .swift-version specified as wasm-DEVELOPMENT-SNAPSHOT-2020-07-02-a, I get this error:

$ carton dev --product TokamakDemo
Polyfill integrity verified: /Users/jed/.carton/static/dev.js
Inferring basic settings...
- swift executable: /Users/jed/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-07-02-a/usr/bin/swift
Swift version 5.3-dev (LLVM c5b1848323200a8, Swift 66efa1272c2973b)
Target: x86_64-apple-darwin19.5.0
Parsing package manifest: /Users/jed/.carton/sdk/wasm-DEVELOPMENT-SNAPSHOT-2020-07-02-a/usr/bin/swift package dump-package
Error: Process failed with non-zero exit status and following error output:
/Users/jed/Documents/github-clones/Forks/Tokamak: error: manifest parse error(s):
Undefined symbols for architecture x86_64:
  "_$s18PackageDescription17SupportedPlatformV12MacOSVersionV6v10_15AEvau", referenced from:
      _main in Package-98b7ab.o
ld: symbol(s) not found for architecture x86_64
<unknown>:0: error: link command failed with exit code 1 (use -v to see invocation)

[MaxDesiatov]

I think this is one is an issue caused by the .build directory left over from some other snapshot being inconsistent with what SwiftPM from the new snapshot expects. Most probably if you remove .build and rebuild you'll get either #1365 or #1362.

[MaxDesiatov]

I think the issue is resolved in wasm-DEVELOPMENT-SNAPSHOT-2020-07-07-a, feel free to reopen otherwise.

[j-f1]

I can’t confirm either way because I haven’t been able to reproduce it for a bit but I couldn’t reproduce it in this version either

[MaxDesiatov]

Cool, no worries. 👍