xcode - Swift: Jazzy failing to run xcodebuild

Question

I'm trying to generate some documentation for. my project using Jazzy. However, when I run jazzy from the command line I'm getting the following output:

Could not successfully run `xcodebuild`.
Please check the build arguments.
Saved `xcodebuild` log file: /var/folders/nd/t1rlxsp94kgbll0v834jnc0h0000gp/T/xcodebuild-84D58051-E84E-40D8-A4E7-E080B83D7117.log
Failed to generate documentation
Traceback (most recent call last):
    7: from /usr/local/bin/jazzy:23:in `<main>'
    6: from /usr/local/bin/jazzy:23:in `load'
    5: from /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/bin/jazzy:15:in `<top (required)>'
    4: from /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/lib/jazzy/doc_builder.rb:79:in `build'
    3: from /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/lib/jazzy/doc_builder.rb:79:in `chdir'
    2: from /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/lib/jazzy/doc_builder.rb:81:in `block in build'
    1: from /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/lib/jazzy/sourcekitten.rb:266:in `run_sourcekitten'
/usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/lib/jazzy/executable.rb:36:in `execute_command': /usr/local/lib/ruby/gems/2.7.0/gems/jazzy-0.13.6/bin/sourcekitten ["doc", "--"] (RuntimeError)

Running xcodebuild

Could not successfully run `xcodebuild`.

Please check the build arguments.

Saved `xcodebuild` log file: /var/folders/nd/t1rlxsp94kgbll0v834jnc0h0000gp/T/xcodebuild-84D58051-E84E-40D8-A4E7-E080B83D7117.log

Failed to generate documentation

Why is this failing to run when from xcode my project build with no issues

Answer 1

Jazzy requires a build from the command line to generate the documentation. So you need a command similar to:

jazzy --build-tool-arguments -workspace,ios.xcworkspace,-scheme,iosapp

From https://github.com/realm/jazzy

...try passing extra arguments to xcodebuild, for example jazzy --build-tool-arguments -scheme,MyScheme,-target,MyTarget

---

How to find your schemes and targets to pass into xcodebuild from Jazzy

Be sure to cd to the directory where your Xcode Workspace or Xcode Project is: cd path/to/ios.xcworkspace

xcodebuild -version

# online help
man xcodebuild

# List schemes & targets
xcodebuild -list

Results for a sample Xcode Workspace,

Information about project "ios":
    Targets:
        iosapp
        bench
        dynamic
        static
        bundle
        test
        integration
        Integration Test Harness

    Build Configurations:
        Debug
        Release
        RelWithDebInfo

    If no build configuration is specified and -scheme is not passed then "RelWithDebInfo" is used.

    Schemes:
        bench
        bundle
        CI
        dynamic
        dynamic+static
        Integration Test Harness
        iosapp
        static