Default Android Studio 0.4.3 Gradle Problem Could not open no_buildscript class


i have Android Studio 0.4.3 installed, also gradle 1.10.
I downloaded a project from GitHub. After that I selected a build.gradle file to open the project in Android Studio.
But then an error comes up: 'Could not open no_buildscript class...', see attached image.

What goes wrong here? Thanks for any help!
Attached Thumbnails
Click image for larger version

Name:	gradle_error.jpg
Views:	2025
Size:	27.4 KB
ID:	2550365