title: flutter stuck on running xcode build
body: <p>Flutter stuck on running xcode build; the verbose shows that it get stuck at here,</p>
  <pre><code>[  +14 ms] Running Xcode build...
      [  +20 ms] executing: [/Users/navodsanthana/AndroidStudioProjects/flash-chat-flutter/ios/] /usr/bin/env xcrun xcodebuild
      -configuration Debug VERBOSE_SCRIPT_LOGGING=YES -workspace Runner.xcworkspace -scheme Runner
      BUILD_DIR=/Users/navodsanthana/AndroidStudioProjects/flash-chat-flutter/build/ios -sdk iphonesimulator -arch x86_64
      SCRIPT_OUTPUT_STREAM_FILE=/var/folders/9_/0bt_4fkx6b3c117b__3dg0280000gn/T/flutter_tools.05FMSK/flutter_build_log_pipe.fnajhb/pipe_to
      _stdout FLUTTER_SUPPRESS_ANALYTICS=true COMPILER_INDEX_STORE_ENABLE=NO
  </code></pre>