Android 支持库 v7 appcompat

Question

我遇到了 Android v7 支持库的问题。我想在 Android 版本 4 及更高版本上使用 Android Material 设计，因此我必须使用支持库 v7 appcompat。对于开发，我正在使用 IntelliJ IDEA 14.1.4

我包含库的方式：

如果我编译并运行我的项目，则会发生此错误：

07-15 05:18:08.636    1675-1675/de.package.application W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0xa4cdab20)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ java.lang.RuntimeException: Unable to start activity ComponentInfo{de.package.application/de.package.application.activities.DrawerActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.Toolbar
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread.access0(ActivityThread.java:135)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.os.Handler.dispatchMessage(Handler.java:102)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.os.Looper.loop(Looper.java:136)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread.main(ActivityThread.java:5001)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at java.lang.reflect.Method.invokeNative(Native Method)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at java.lang.reflect.Method.invoke(Method.java:515)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at dalvik.system.NativeStart.main(Native Method)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.Toolbar
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.createView(LayoutInflater.java:620)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.parseInclude(LayoutInflater.java:816)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.rInflate(LayoutInflater.java:745)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.rInflate(LayoutInflater.java:758)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.Activity.setContentView(Activity.java:1929)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at de.package.application.activities.DrawerActivity.onCreate(DrawerActivity.java:82)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.Activity.performCreate(Activity.java:5231)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ ... 11 more
07-15 05:18:08.636    1675-1675/de.package.application W/System.err﹕ Caused by: java.lang.reflect.InvocationTargetException
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ at java.lang.reflect.Constructor.constructNative(Native Method)
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ at android.view.LayoutInflater.createView(LayoutInflater.java:594)
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ ... 24 more
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ Caused by: java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$attr
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ at android.support.v7.widget.Toolbar.<init>(Toolbar.java:191)
07-15 05:18:08.640    1675-1675/de.package.application W/System.err﹕ ... 27 more

Xml-文档，错误发生的地方：

    <?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="128dp"
        android:background="#DDD">

</android.support.v7.widget.Toolbar>

我为此工作了几个小时。我希望有一个人可以帮助我。提前致谢

（抱歉出现拼写和语法错误）

编辑：

我添加了其他问题中描述的库。我现在是这样的：

但还是一样的错误:l

Answer 1

将此添加到您的 build.gradle(Module:app) 依赖项中：

compile 'com.android.support:appcompat-v7:21.0.3'

然后同步您的项目

它会自动添加库

Answer 2

检查这个：

How do I add a library (android-support-v7-appcompat) in IntelliJ IDEA

那里有 With/Without Gradle 两种解决方案。

Android 支持库 v7 appcompat

Android support Library v7 appcompat

android

android-layout

intellij-idea

android-support-library

android-appcompat