Please help an idiot with Android Studio setup

Question

Hi guys. so I am a complete novice with Android and Android Studio.
I installed Android studio 2.3.3 for x64. When I started the program up it downloaded and installed the NDK and some other stuff. Now when I try to build, it says the following:

Error:A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApkCopy'.
> Could not find any version that matches com.android.support:appcompat-v7:27.+.
Versions that do not match:
26.0.0-alpha1
25.3.1
25.3.0
25.2.0
25.1.1
+ 31 more
Required by:
project :app

Please help me set up so that it can actually build. I can not install using cmd on my laptop - other issues for another day.

Thanks!

Answer 1

is your system connected to the internet? because sometime gradle produces error when it has to download some libraries.
Reinstalling the Android Support Repository might help and add these lines if it is not present in gradle(app)

compile 'com.android.support:appcompat-v7:23.1.1' compile 'com.android.support:recyclerview

Answer 2

Thanks Saminjay I will give it a shot and report back 👍