Swagger-codegen for objc doesn't work - produces invalid cocoa pod

Description

Swagger-codegen for objc doesn't work - produces invalid cocoa pod when checked via lint. See below.

Swagger-codegen version

2.3.1

Swagger declaration file content or url

https://api.cloudmersive.com/specs/allapis.json

Command line used for generation

Standard, see above

Steps to reproduce

1. Run swagger-codegen for objectivec on this spec URL:

https://api.cloudmersive.com/specs/allapis.json

2. Then run "pod lib lint" on a mac to check validity

Expected: No errors

Observed: Errors - see below

Error:

Cloudmersive.APIClient.Cocoa andrewbragdon$ pod lib lint

-> cloudmersive (1.0.0)
- ERROR | [iOS] unknown: Encountered an unknown error (/usr/bin/xcrun simctl list -j devices

dyld: Symbol not found: _SimDeviceBootKeyDisabledJobs
Referenced from: /Applications/Xcode.app/Contents/Developer/usr/bin/simctl
Expected in: /Library/Developer/PrivateFrameworks/CoreSimulator.framework/Versions/A/CoreSimulator
in /Applications/Xcode.app/Contents/Developer/usr/bin/simctl
) during validation.

[!] cloudmersive did not pass validation, due to 1 error.
You can use the --no-clean option to inspect any issue.

Start by generating the Objective-C client from https://api.cloudmersive.com/specs/allapis.json with swagger-codegen 2.3.1, then run “pod lib lint” on macOS and compare the result with the reported xcrun/simctl error. Confirm whether the failure is in the generated CocoaPod or the local Xcode/CoreSimulator environment; done means the cause is identified and the reproduction is resolved or documented.