android - 不幸的是，当我使用 Sugar ORM 时，我的应用程序停止了

Question

使用这些 configurations我确实在我的项目中添加了 sugar orm，但不幸的是我的应用程序因这个错误停止了:

    FATAL EXCEPTION: main
Process: gigacycle.geoaudiotag, PID: 22760
java.lang.RuntimeException: Unable to instantiate application com.orm.SugarApp: java.lang.ClassNotFoundException: Didn't find class "com.orm.SugarApp" on path: DexPathList[[zip file "/data/app/gigacycle.geoaudiotag-1/base.apk"],nativeLibraryDirectories=[/data/app/gigacycle.geoaudiotag-1/lib/arm, /vendor/lib, /system/lib]]
    at android.app.LoadedApk.makeApplication(LoadedApk.java:676)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289)
    at android.app.ActivityThread.access$1800(ActivityThread.java:221)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:158)
    at android.app.ActivityThread.main(ActivityThread.java:7224)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
 Caused by: java.lang.ClassNotFoundException: Didn't find class "com.orm.SugarApp" on path: DexPathList[[zip file "/data/app/gigacycle.geoaudiotag-1/base.apk"],nativeLibraryDirectories=[/data/app/gigacycle.geoaudiotag-1/lib/arm, /vendor/lib, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
    at android.app.Instrumentation.newApplication(Instrumentation.java:1004)
    at android.app.LoadedApk.makeApplication(LoadedApk.java:666)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289) 
    at android.app.ActivityThread.access$1800(ActivityThread.java:221) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:158) 
    at android.app.ActivityThread.main(ActivityThread.java:7224) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 
    Suppressed: java.lang.ClassNotFoundException: com.orm.SugarApp
    at java.lang.Class.classForName(Native Method)
    at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
    at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
            ... 12 more
 Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available

这是我的 list :

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="gigacycle.geoaudiotag">
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme"
        android:name="com.orm.SugarApp">
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="@string/google_maps_key" />
        <meta-data android:name="DATABASE" android:value="geoaudiotagdb.db" />
        <meta-data android:name="VERSION" android:value="2" />
        <meta-data android:name="QUERY_LOG" android:value="true" />
        <meta-data android:name="DOMAIN_PACKAGE_NAME" android:value="gigacycle.geoaudiotag"/>
        <activity
            android:name="gigacycle.geoaudiotag.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

这行也编译成功了!

compile 'com.github.satyan:sugar:1.4'

不知道为什么会出现这个 fatal error ？我的错误在哪里？

Answer 1

同步 gradle 和构建。

只是下载包不会生成com.orm.SugarApp。 Gradle 同步将生成类，在同步之前，它在 AndroidManifest 中显示为 lint 错误。不幸的是，这不能被捕获为编译器错误并导致运行时错误。