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kotlinlang

Upgrading from 0.15.4 (gradle 4.6) to 0.16.3 (gradle 4.7-rc1) breaks my build with error messages like 

```A problem occurred configuring project ':browser'.
&gt; Extension of type 'ApplicationPluginConvention' does not exist. Currently registered extension types: [ExtraPropertiesExtension]```

I have a plugins block at the top of the script (<https://github.com/ingokegel/jclasslib/blob/master/modules/browser/browser.gradle.kts>) that applies the plugins, so the extensions should be there. Anyone else experienced such a problem?