When running pod spec lint I get the following error: _ERROR | [iOS] unknown: Encountered an unknown error (uninitialized constant Concurrent::Promises
Did you mean? Concurrent::Promise_ . Cannot figure out how to solve this.
Cocoapods version: 1.8.0 (on 1.7.5 everything works).
Duplicate of https://github.com/CocoaPods/CocoaPods/issues/9188
Use gem update concurrent-ruby.
Also fixed with 1.8.1 release.
Most helpful comment
Duplicate of https://github.com/CocoaPods/CocoaPods/issues/9188
Use
gem update concurrent-ruby.Also fixed with 1.8.1 release.