今天我将ADT和SDK工具更新到v17,使用Google的gson jar库的项目开始抛出NoClassDefFoundError.这是logcat输出:
> 03-22 12:30:58.941: E/AndroidRuntime(21672): FATAL EXCEPTION: main
> 03-22 12:30:58.941: E/AndroidRuntime(21672):
> java.lang.NoClassDefFoundError: com.google.gson.Gson 03-22
> 12:30:58.941: E/AndroidRuntime(21672): at
> com.matriksdata.conn.XRequestHandler.connect(XRequestHandler.java:35)
> 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> com.matriksdata.conn.XRequestHandler.makeRequest(XRequestHandler.java:
> 29) 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> com.matriksdata.bavul.XBaseWithConnectionActivity.makeRequest(XBaseWithConnectionActivity.java:
> 46) 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> com.matriksdata.ui.login.SplashScreenActivity.onCreate(SplashScreenActivity.java:
> 36) 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> android.app.Activity.performCreate(Activity.java:4465) 03-22
> 12:30:58.941: E/AndroidRuntime(21672): at
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
> 1049) 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> 1919) 03-22 12:30:58.941: E/AndroidRuntime(21672): at
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
> 1980) 03-22 …我正在尝试使用JDBC驱动程序将我的Android应用程序连接到服务器(PostgreSQL),但是我有这个错误:
java.lang.ClassNotFoundException: org.postgresql.Driver
...
Caused by: java.lang.NoClassDefFoundError: org/postgresql/Driver
... 12 more
Caused by: java.lang.ClassNotFoundException: org.postgresql.Driver
...
java.sql.SQLException: No suitable driver
我尝试了很多东西,比如在路径中添加驱动程序的地址,但没有任何效果.我按照本教程:http: //appliedcoffeetechnology.tumblr.com/post/10657124340并在Build Path中添加了驱动程序JDBC4(我也尝试过JDBC3).
每个人都可以帮助我吗？