$ flutter channel dev $ flutter upgrade
$ flutter config --enable-web
$ mkdir “~/url_launcher_example” $ cd “~/url_launcher_example” $ flutter create .
name: url_launcher_example ... dependencies: flutter: sdk: flutter url_launcher: 5.2.3 ...
$ mkdir “~/url_launcher_web” $ cd “~/url_launcher_web”
dependencies: flutter: sdk: flutter url_launcher: 5.2.3 url_launcher_web: path: ../url_launcher_web