"Cannot convert undefined or null to object" after running `ios-sim showsdks`

[kelvindart]

Expected behavior

To be able to call the command without error, and have it return data listing installed SDKs.

Actual behavior.

Currently when you run the following command via ios-sim, it displays the error you see beneath the command:

$ ios-sim showsdks
Cannot convert undefined or null to object

Steps to reproduce the problem

1. Run ios-sim showsdks.
2. Observe error.

System Specs

Please run the commands below in your Terminal.app and include it in the issue. Check when done and include results below.

• [x] 1. system_profiler SPSoftwareDataType
• [x] 2. ios-sim --version
• [x] 3. xcodebuild -version
• [x] 4. xcode-select --print-path
• [x] 5. node --version

system_profiler SPSoftwareDataType

    System Software Overview:

      System Version: macOS 10.12.6 (16G29)
      Kernel Version: Darwin 16.7.0
      Boot Volume: Macintosh HD
      Boot Mode: Normal
      Computer Name: Kelvin’s MacBook Pro
      User Name: Kelvin Dart (kelvindart)
      Secure Virtual Memory: Enabled
      System Integrity Protection: Enabled
      Time since boot: 2 days 8:18

ios-sim --version

6.1.1

xcodebuild -version

Xcode 9.0
Build version 9A23

xcode-select --print-path

/Applications/Xcode.app/Contents/Developer

node --version

8.5.0

[kelvindart]

I have just debugged this. The issue is because of the following line: https://github.com/phonegap/ios-sim/blob/master/src/lib.js#L329

list = fixSimCtlList(list);

The call to fixSimCtlList(...) is unrequired. This references two properties in regards to the simulators: devicetypes and devices. We are concerned with the SDKs, not simulators at this point, so the call is unnecessary; list is of the following format:

{
  "runtimes": [
    {
      "buildversion": "15A372",
      "availability": "(available)",
      "name": "iOS 11.0",
      "identifier": "com.apple.CoreSimulator.SimRuntime.iOS-11-0",
      "version": "11.0"
    },
    {
      "buildversion": "15J380",
      "availability": "(available)",
      "name": "tvOS 11.0",
      "identifier": "com.apple.CoreSimulator.SimRuntime.tvOS-11-0",
      "version": "11.0"
    },
    {
      "buildversion": "15R372",
      "availability": "(available)",
      "name": "watchOS 4.0",
      "identifier": "com.apple.CoreSimulator.SimRuntime.watchOS-4-0",
      "version": "4.0"
    }
  ]
}

I will raise a PR, and reference this bug.

[shazron]

Fixed in #221