Fix travis build

Author: digitalmoksha

.travis.yml

@@ -1,23 +1,29 @@
-os: osx
-osx_image: xcode10.2
 language: objective-c
+osx_image: xcode11.3
 env:
-  - TMP_DIR=./tmp  # For motion repo, so it doesn't attempt to use /tmp, to which it has no access
+  - RUBYMOTION_LICENSE=1dcac45cc434293009f74b33037bdf7361a3a1ff # Official license key for open-source projects
+  - TMP_DIR=./tmp # For motion repo, so it doesn't attempt to use /tmp, to which it has no access
+  - OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
 
 before_install:
-  - (ruby --version)
+  - brew update
+  - brew outdated xctool || brew upgrade xctool
+  - (xcrun simctl list)
   - wget http://travisci.rubymotion.com/ -O RubyMotion-TravisCI.pkg
   - sudo installer -pkg RubyMotion-TravisCI.pkg -target /
   - cp -r /usr/lib/swift/*.dylib /Applications/Xcode.app/Contents/Frameworks/
   - touch /Applications/Xcode.app/Contents/Frameworks/.swift-5-staged
   - sudo mkdir -p ~/Library/RubyMotion/build
   - sudo chown -R travis ~/Library/RubyMotion
   - eval "sudo motion activate $RUBYMOTION_LICENSE"
-  - sudo motion update && motion repo
+  - sudo motion update
+  - (motion --version)
+  - (ruby --version)
+  - motion repo
+  - bundle exec rake pod:install
 
 gemfile:
   - Gemfile
 
 script:
-  - bundle exec rake pod:install
-  - bundle exec rake spec
+  - bundle exec rake spec