Java 尝试使用cardslib时出现的问题

我正在尝试使用此处找到的cardslib库。我很难将它添加到我的项目中，我唯一能想到的方法就是将文件复制并粘贴到我的项目中，然后更改所有包名以匹配我的项目。问题在于，在运行时会生成以下错误：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.nick.simplequiz.paid/com.nick.simplequiz.paid.statistics}: android.view.InflateException: Binary XML file line #39: Error inflating class com.nick.simplequiz.paid.view.CardView
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2463)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
    at android.app.ActivityThread.access$600(ActivityThread.java:162)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1366)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:158)
    at android.app.ActivityThread.main(ActivityThread.java:5751)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
    at dalvik.system.NativeStart.main(Native Method)
    Caused by: android.view.InflateException: Binary XML file line #39: Error inflating class com.nick.simplequiz.paid.view.CardView
    at android.view.LayoutInflater.createView(LayoutInflater.java:613)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
    at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:342)
    at android.app.Activity.setContentView(Activity.java:1929)
    at com.nick.simplequiz.paid.statistics.onCreate(statistics.java:41)
    at android.app.Activity.performCreate(Activity.java:5165)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1103)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2419)
    ... 11 more
    Caused by: java.lang.reflect.InvocationTargetException
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
    at android.view.LayoutInflater.createView(LayoutInflater.java:587)
    ... 22 more
    Caused by: android.view.InflateException: Binary XML file line #57: Error inflating class com.nick.simplequiz.paid.component.CardShadowView
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:698)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
    at com.nick.simplequiz.paid.view.BaseCardView.initView(BaseCardView.java:153)
    at com.nick.simplequiz.paid.view.BaseCardView.init(BaseCardView.java:125)
    at com.nick.simplequiz.paid.view.BaseCardView.<init>(BaseCardView.java:101)
    at com.nick.simplequiz.paid.view.CardView.<init>(CardView.java:172)
    ... 25 more
    Caused by: java.lang.ClassNotFoundException: Didn't find class "com.nick.simplequiz.paid.component.CardShadowView" on path: /data/app/com.nick.simplequiz.paid-1.apk
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    at android.view.LayoutInflater.createView(LayoutInflater.java:552)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)

我认为这就是xml的问题所在：

<com.nick.simplequiz.paid.view.CardView  //starting here
        android:id="@+id/carddemo"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="12dp"
        android:layout_marginRight="12dp"
        android:layout_marginTop="12dp"/>

---

我不明白是什么导致了这个错误，我已经验证了所有的类都被正确地复制和重命名了，但是我不确定还有什么可以尝试的。非常感谢您的建议。

错误来自不正确的依赖关系，我知道您说您检查了它，但它仍然找不到，我真的会尝试按照作者的指示修改maven构建文件，或者这可能只是许多错误中的第一个错误

开始使用此项目所需的唯一步骤是在build.gradle文件中添加gradle依赖项，该文件位于目录树的最低位置

dependencies { 
    compile 'com.github.gabrielemariotti.cards:library:1.7.3' 
}

---

这是我以前尝试过的，但当我尝试时，我不明白做这件事的步骤。简单地将依赖项复制到build.gradle文件似乎没有任何作用，我之前在这里问了一个问题：您使用的是android studio还是eclipse？