Error:Cannot configure the 'publishing' extension after it has been accessed
I have faced the same issue after upgrading to latest studio.
I am not sure about the root cause but what I did is
comment below line from volley build.gradle
apply from: 'bintray.gradle'
As I can see there many project are there in you dependencies. If possible comment same from all and try syncing again.
Same thing happened to me.
I am not a Gradle expert but my solution was a little bit less drastic. I just edited the bintray.gradle file by moving the line:
apply plugin: 'maven-publish'
just before the publishing
action.
This problem seems to be related with this:
https://github.com/researchgate/gradle-release/issues/125
This error comes from volley module, I solved this problem by doing as follows:
open volley module, find bintray.gradle
file and change
publishing {
publications {...}
}
to
publishing.publications {...}
then it will work just fine.