#greendao#NoClassDefFoundError:

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今天在调试项目的时候，项目编译都正常如初，但是运行的时候直接崩掉了，异常如下：

java.lang.NoClassDefFoundError: org.greenrobot.greendao.query.WhereCollector at org.greenrobot.greendao.query.QueryBuilder.<init>(QueryBuilder.java:85) at org.greenrobot.greendao.query.QueryBuilder.internalCreate(QueryBuilder.java:73) at org.greenrobot.greendao.AbstractDao.queryBuilder(AbstractDao.java:793) at com.luckytry.luckylibrary.MyAplication.APPAplication.initData(APPAplication.java:132) at com.luckytry.luckylibrary.MyAplication.APPAplication.initDB(APPAplication.java:117) at com.luckytry.luckylibrary.MyAplication.APPAplication.onCreate(APPAplication.java:39) at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1009) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4655) at android.app.ActivityThread.access$1800(ActivityThread.java:143) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1322) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5356) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:864) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:680) at dalvik.system.NativeStart.main(Native Method)

然后我花了一个下午时间，通过百度、QQ群、CSDN，github、stackoverflow等等，终于解决了步骤如下：

添加依赖

compile 'com.android.support:multidex:1.0.1'

修改build.gradle文件

android {    ...    defaultConfig {        ...        multiDexEnabled true       ...    }...    }

修改Application

<application        android:name="MultiDexApplication"        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme"        android:windowSoftInputMode="adjustPan">     //如果有自定义的Application，就修改继承关系     public class APPAplication extends MultiDexApplication {}

然后再次运行就解决这个异常了！
感谢老外的“堆栈溢出”——stackoverflow！

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