Intellij Android project schema URI not registered? - Stack Overflow

Android Studio - URI is not registered - Stack OverflowIssue 55550 - android - xmls uri is not registered on default layout - Android - An Open Handset Alliance Project - Google Project Hosting

’tools.jar' is not in Android Studio classpath. please ensure JAVA_HOME points to JDK rather than JRE. JREしか入ってなかった。 JAVA_HOME=C:\Program Files\Java\jre7 JDK７を入れてみる。

java - Failed to import new Gradle project: Could not fetch model of type 'IdeaProject' - Stack Overflow

Android studio and gradle build error - Stack Overflow