clap assertion failure in cli.yml

[edgex004]

Describe the bug

Clap throws an assertion error when running tauri build.

Side note: it seems like load_yaml!("cli.yml"); does not mark main.rs as dirty when cli.yml changes. I need to clean build to get the changes in cli.yml to be utilized.

To Reproduce

Steps to reproduce the behavior:

1. cd to rs.cli directory.
2. Clean build rs.cli: cargo clean && cargo build
3. cd to your project directory. (In this case, project was created with npm x create-tauri-app)
4. Build project with rs.cli executable: path/to/cargo-tauri tauri build
5. Note error:

thread 'main' panicked at '
ArgSettings::TakesValue is required when ArgSettings::MultipleValues is set.

Expected behavior

Project is built successfully.

Screenshots

Platform and Versions (required):

Operating System - Mac OS, version 11.2.3 X64

Node.js environment
  Node.js - 16.7.0
  @tauri-apps/cli - 1.0.0-beta.9
  @tauri-apps/api - 1.0.0-beta.6

Global packages
  npm - 7.20.3
  yarn - 1.22.11

Rust environment
  rustc - 1.56.0-nightly
  cargo - 1.56.0-nightly

App directory structure
/dist
/target
/node_modules
/src-tauri
/.idea
/src

App
  tauri.rs - 1.0.0-beta.6 (no lockfile)
  build-type - bundle
  CSP - default-src blob: data: filesystem: ws: wss: http: https: tauri: 'unsafe-eval' 'unsafe-inline' 'self' img-src: 'self'
  distDir - ../dist
  devPath - http://localhost:10001/
  bundler - Rollup

Additional context

Built from hash 8fcdc1d47419f8f609b5685d5266d7c5365a7106

Stack Trace

[edgex004]

I have updated cli.yml to fix on my system. Will submit a PR.

[edgex004]

Would it be a good idea to add a test for cli.yml?

[edgex004]

Fixed by #2507.