unable to install on iOS

[DK15]

Cloned repo and tried to run on ios simulator, but getting compile time error:

1 error generated.
    In file included from /Users/deeptibelsare/.pub-cache/hosted/pub.dartlang.org/url_launcher-4.0.2/ios/Classes/UrlLauncherPlugin.m:7:
    /Users/deeptibelsare/.pub-cache/hosted/pub.dartlang.org/url_launcher-4.0.2/ios/Classes/UrlLauncherPlugin.h:5:9: fatal error: 'Flutter/Flutter.h' file not found
    #import <Flutter/Flutter.h>
            ^~~~~~~~~~~~~~~~~~~
    1 error generated.

Could not build the application for the simulator.
Error launching application on iPhone 8.

[RafaelBarbosatec]

This problem is caused by the version of your installed cocoapods.

flutter/flutter#16036

I solved it by installing version 1.4.0