fix

Author: linhay

.travis.yml

@@ -1,4 +1,4 @@
-osx_image: xcode10.1
+osx_image: xcode10.2.1
 language: objective-c
 
 cache: cocoapods

Khala.podspec

@@ -8,7 +8,7 @@ Pod::Spec.new do |s|
   s.author    = { 'linhey' => 'is.linhay@outlook.com' }
   s.source    = { :git => 'https://github.com/linhay/Khala.git', :tag => s.version.to_s }
 
-  s.swift_version = '4.2'
+  s.swift_version = '5.0'
 
   s.ios.deployment_target = '8.0'
   s.tvos.deployment_target = '9.0'