问题
I have created a very simple Android app just to work with functionality. Within the app I would like to call a web service client to retrieve and display some data. I think I have succesfully imported and referenced the jar file (i.e. library). It appears to be instantiating the class successfully but when that class is referencing another class within the jar/library it throws a class not found error. Any ideas??? Anything else I can provide to help answer???
Here is my code:
package mhcs.android.ehd;
import mhcs.services.client.EHD.EHDClient;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class GetTicketDescription extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
EHDClient client = new EHDClient();
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
String title = getString(R.string.title);
setTitle(title); // done so that we can change the default title
//get handles to editText and button widgets
final EditText eText = (EditText) findViewById(R.id.editText1);
final Button button = (Button) findViewById(R.id.button1);
eText.setText(client.getTicketDescription("MMLZ-8LVRMK"));
button.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View v) {
//get the String entered into the editText widget
CharSequence editText = eText.getText();
//display the toast
Toast.makeText(GetTicketDescription.this, editText, Toast.LENGTH_LONG).show();
}
});
}
}
Here is the error:
D/dalvikvm(538): Not late-enabling CheckJNI (already on)
I/dalvikvm(538): threadid=3: reacting to signal 3
I/dalvikvm(538): Wrote stack traces to '/data/anr/traces.txt'
W/dalvikvm(538): Unable to resolve superclass of Lorg/tempuri/EHDLookupService; (73)
W/dalvikvm(538): Link of class 'Lorg/tempuri/EHDLookupService;' failed
E/dalvikvm(538): Could not find class 'org.tempuri.EHDLookupService', referenced from method mhcs.services.client.EHD.EHDClient.<init>
W/dalvikvm(538): VFY: unable to resolve new-instance 93 (Lorg/tempuri/EHDLookupService;) in Lmhcs/services/client/EHD/EHDClient;
D/dalvikvm(538): VFY: replacing opcode 0x22 at 0x0003
W/dalvikvm(538): Unable to resolve superclass of Lorg/tempuri/EHDLookupService; (73)
W/dalvikvm(538): Link of class 'Lorg/tempuri/EHDLookupService;' failed
W/dalvikvm(538): Unable to resolve superclass of Lorg/tempuri/EHDLookupService; (73)
W/dalvikvm(538): Link of class 'Lorg/tempuri/EHDLookupService;' failed
I/dalvikvm(538): Could not find method org.tempuri.EHDLookupService.getBasicHttpBindingIEHDLookupService, referenced from method mhcs.services.client.EHD.EHDClient.<init>
W/dalvikvm(538): VFY: unable to resolve virtual method 112: Lorg/tempuri/EHDLookupService;.getBasicHttpBindingIEHDLookupService ()Lorg/tempuri/IEHDLookupService;
D/dalvikvm(538): VFY: replacing opcode 0x6e at 0x001c
W/dalvikvm(538): VFY: unable to find class referenced in signature (Ljavax/xml/bind/JAXBElement;)
I/dalvikvm(538): Could not find method javax.xml.bind.JAXBElement.getValue, referenced from method mhcs.services.client.EHD.EHDClient.getAssigneeTickets
W/dalvikvm(538): VFY: unable to resolve virtual method 42: Ljavax/xml/bind/JAXBElement;.getValue ()Ljava/lang/Object;
D/dalvikvm(538): VFY: replacing opcode 0x6e at 0x0026
W/dalvikvm(538): VFY: unable to find class referenced in signature (Ljavax/xml/bind/JAXBElement;)
I/dalvikvm(538): Could not find method javax.xml.bind.JAXBElement.getValue, referenced from method mhcs.services.client.EHD.EHDClient.getTicketDescription
W/dalvikvm(538): VFY: unable to resolve virtual method 42: Ljavax/xml/bind/JAXBElement;.getValue ()Ljava/lang/Object;
D/dalvikvm(538): VFY: replacing opcode 0x6e at 0x000b
W/dalvikvm(538): Unable to resolve superclass of Lorg/tempuri/EHDLookupService; (73)
W/dalvikvm(538): Link of class 'Lorg/tempuri/EHDLookupService;' failed
D/dalvikvm(538): DexOpt: unable to opt direct call 0x006b at 0x15 in Lmhcs/services/client/EHD/EHDClient;.<init>
D/AndroidRuntime(538): Shutting down VM
W/dalvikvm(538): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
E/AndroidRuntime(538): FATAL EXCEPTION: main
E/AndroidRuntime(538): java.lang.NoClassDefFoundError: org.tempuri.EHDLookupService
E/AndroidRuntime(538): at mhcs.services.client.EHD.EHDClient.<init>(EHDClient.java:25)
E/AndroidRuntime(538): at mhcs.android.ehd.GetTicketDescription.onCreate(GetTicketDescription.java:15)
E/AndroidRuntime(538): at android.app.Activity.performCreate(Activity.java:4465)
E/AndroidRuntime(538): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
E/AndroidRuntime(538): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
E/AndroidRuntime(538): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
E/AndroidRuntime(538): at android.app.ActivityThread.access$600(ActivityThread.java:123)
E/AndroidRuntime(538): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
E/AndroidRuntime(538): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(538): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(538): at android.app.ActivityThread.main(ActivityThread.java:4424)
E/AndroidRuntime(538): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(538): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(538): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
E/AndroidRuntime(538): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
E/AndroidRuntime(538): at dalvik.system.NativeStart.main(Native Method)
I/dalvikvm(538): threadid=3: reacting to signal 3
I/dalvikvm(538): Wrote stack traces to '/data/anr/traces.txt'
Note: I understand the issue with org/tempuri and will correct.
(Can't post image of my workspace as I am a new user)
回答1:
- Find Properties -> Java Build Path -> Order and Export
- Change Android Dependencies order
回答2:
Try to create a new folder called libs under your project and put the .jar file there...
回答3:
I had the same problem, I tried to mark the Android Private Libraries under Order and Export and it didn't work for me. Then I noticed that my libs folder wasn't referenced under the Java Build Path. So I just added it to Libraries and it worked.
回答4:
Go to Project> Build Path >Configure Build Path
Check the Libraries you wanted and hit ok
来源：https://stackoverflow.com/questions/10710693/unable-to-find-classes-in-android-library-file