安卓Studio初次使用

sqKH***

我的安卓手机到哪去了..一拖动那个十字架就报空指针nulljava.lang.NullPointerException atcom.android.tools.idea.uibuilder.surface.CanvasResizeInteraction.(CanvasResizeInteraction.java:103) atcom.android.tools.idea.uibuilder.surface.InteractionManager$Listener.mousePressed(InteractionManager.java:446) atjava.awt.Component.processMouseEvent(Component.java:6530) atjavax.swing.JComponent.processMouseEvent(JComponent.java:3324) atjava.awt.Component.processEvent(Component.java:6298) atjava.awt.Container.processEvent(Container.java:2236) atjava.awt.Component.dispatchEventImpl(Component.java:4889) atjava.awt.Container.dispatchEventImpl(Container.java:2294) atjava.awt.Component.dispatchEvent(Component.java:4711) atjava.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) atjava.awt.LightweightDispatcher.processMouseEvent(Container.java:4522) atjava.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) atjava.awt.Container.dispatchEventImpl(Container.java:2280) atjava.awt.Window.dispatchEventImpl(Window.java:2746) atjava.awt.Component.dispatchEvent(Component.java:4711) atjava.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) atjava.awt.EventQueue.access$500(EventQueue.java:97) atjava.awt.EventQueue$3.run(EventQueue.java:709) atjava.awt.EventQueue$3.run(EventQueue.java:703) atjava.security.AccessController.doPrivileged(NativeMethod) atjava.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) atjava.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90) atjava.awt.EventQueue$4.run(EventQueue.java:731) atjava.awt.EventQueue$4.run(EventQueue.java:729) atjava.security.AccessController.doPrivileged(NativeMethod) atjava.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80) atjava.awt.EventQueue.dispatchEvent(EventQueue.java:728) atcom.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:795) atcom.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:627) atcom.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:387) atjava.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) atjava.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) atjava.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) atjava.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) atjava.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) atjava.awt.EventDispatchThread.run(EventDispatchThread.java:82)Gradlesyncfailed:Couldnotfindmethodandroid()forarguments[build_f2uiel5fv19yxv4mzot8n06jd$_run_closure3@6d1da161]onrootproject'HelloWorld'oftypeorg.gradle.api.Project. ConsultIDElogformoredetails(Help|ShowLog)这是buider.gradle文件//Top-levelbuildfilewhereyoucanaddconfigurationoptionscommontoallsub-projects/modules.buildscript{repositories{jcenter()}dependencies{classpath'com.android.tools.build:gradle:2.3.3'//NOTE:Donotplaceyourapplicationdependencieshere;theybelong//intheindividualmodulebuild.gradlefiles}}allprojects{repositories{jcenter()}}taskclean(type:Delete){deleterootProject.buildDir}android{signingConfigs{}compileSdkVersion23buildToolsVersion'26.0.0'dexOptions{incrementaltrue}compileOptions{sourceCompatibilityJavaVersion.VERSION_1_7targetCompatibilityJavaVersion.VERSION_1_7}defaultConfig{minSdkVersion25}productFlavors{}}dependencies{}

人***

compileSdkVersion23
buildToolsVersion'26.0.0'
minSdkVersion25
你这三个参数有问题啊，Gradlesyncfailed报错了。至于空指针异常我也不知道那是什么鬼，你先把参数改对后同步一下，看下有没有用吧

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