4.0.0 com.android.support.constraint constraint-layout-solver 1.1.0 Android ConstraintLayout Solver Solver for ConstraintLayout http://tools.android.com 2007 The Apache Software License, Version 2.0 http://www.apache.org/licenses/LICENSE-2.0.txt repo The Android Open Source Project git://android.googlesource.com/platform/tools/sherpa.git https://android.googlesource.com/platform/tools/sherpa