gradle - failed to build tool version android -
i tried open old project of mine in freshly installed android studio (today), gave me error : failed find build tools revision 23.0.0 rc2 install build tools 23.0.0 rc2 , sync project i looked in internet , tried add in gradle file : android { compilesdkversion 22 buildtoolsversion "22.0.0" } and gave me error: gradle dsl method not found: 'android()' possible causes: project may using version of gradle not contain method. gradle settings. build file may missing gradle plugin. apply gradle plugin. this gradle file : // top-level build file can add configuration options common sub-projects/modules. buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:1.2.3' } } allprojects { repositories { jcenter() } } android { compilesdkversion 22 buildtoolsversion "22.0.0" } right click on project > open module settings > properties tab, change : compile sdk verion api...