我正在使用Eclipse构建一个简单的Android项目，该项目使用google-api-java-client。我试图遵循this tutorial来使其运行起来。我在SO上搜索了如何在Eclipse中向Android项目添加JAR的答案。大多数人建议将JAR添加到Android项目内部的
以下是来自Eclipse LogCat的更完整输出：
lib/文件夹中，然后将这些JAR添加到项目的构建路径中。我已经完成了这两件事。该项目编译正常（无论如何，Eclipse没有抱怨任何错误）。但是当我在模拟器中运行Android应用程序时，每当我尝试实例化google-api-java-client JAR中的任何类时，都会出现ClassDefNotFoundError。例如new com.google.api.client.http.apache.ApacheHttpTransport();
引发 ClassDefNotFoundError 错误。
这是导致错误的代码：
package com.mycom.android;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.EditText;
public class SearchRunner implements OnClickListener {
private static final String API_KEY = "AIzaSyA1Mg3xWXfoov4HdPUzYY2NwTxuvCev1-E";
private static final String PLACES_SEARCH_URL = "";
@Override
public void onClick(View v) {
EditText editText = (EditText) v;
String searchText = editText.getText().toString();
runSearch(searchText);
}
protected void runSearch(String searchText) {
new com.google.api.client.http.apache.ApacheHttpTransport();
}
}
以下是来自Eclipse LogCat的更完整输出：
12-21 15:42:11.402: E/dalvikvm(3412): Could not find class 'com.google.api.client.http.apache.ApacheHttpTransport', referenced from method com.mycom.android.SearchRunner.runSearch
12-21 15:42:11.402: W/dalvikvm(3412): VFY: unable to resolve new-instance 70 (Lcom/google/api/client/http/apache/ApacheHttpTransport;) in Lcom/mycom/android/SearchRunner;
12-21 15:42:11.402: D/dalvikvm(3412): VFY: replacing opcode 0x22 at 0x0000
12-21 15:42:11.402: D/dalvikvm(3412): DexOpt: unable to opt direct call 0x00ca at 0x02 in Lcom/mycom/android/SearchRunner;.runSearch
12-21 15:42:11.682: I/MapActivity(3412): Handling network change notification:CONNECTED
12-21 15:42:11.682: E/MapActivity(3412): Couldn't get connection factory client
12-21 15:42:11.791: D/gralloc_goldfish(3412): Emulator without GPU emulation detected.
12-21 15:42:12.532: D/dalvikvm(3412): GC_CONCURRENT freed 102K, 3% free 10520K/10823K, paused 5ms+7ms
12-21 15:42:18.422: D/AndroidRuntime(3412): Shutting down VM
12-21 15:42:18.422: W/dalvikvm(3412): threadid=1: thread exiting with uncaught exception (group=0x409951f8)
12-21 15:42:18.482: E/AndroidRuntime(3412): FATAL EXCEPTION: main
12-21 15:42:18.482: E/AndroidRuntime(3412): java.lang.NoClassDefFoundError: com.google.api.client.http.apache.ApacheHttpTransport
12-21 15:42:18.482: E/AndroidRuntime(3412): at com.mycom.android.SearchRunner.runSearch(SearchRunner.java:20)