noclassdeffounderror

问题 I'm new in JasperReports and I want to integrate a JasperReports into my Java program, so when I click print button the program will show the report. But I get a NoClassDefFoundError when I click the button. Code JButton btnReport= new JButton("Report"); btnReport.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { try{ String fileName= "src/learnReport/Leaf_Grey.jasper"; Connection con = connect.getConnect(); File file = new File(NameFile); JasperReport

问题 I am trying to build a tiny sample application with ActionBarSherlock 4.1 using Eclipse Indigo and ADT r20. I created a new Android project with a blank activity, copied actionbarsherlock.jar to libs and referenced it in the build path. The app builds successfully, but upon starting on either the emulator (using 2.2) or the device (using 4.0.4), it crashes with the error: java.lang.NoClassDefFoundError: com.actionbarsherlock.R$styleable at com.actionbarsherlock.view.MenuInflater$MenuState

问题 I have just downloaded the facebook SDK from http://github.com/facebook/facebook-android-sdk I unpack it from git and opened Eclipse. I then created a new project using existing source and selected the facebook directory. So the sdk project came up correctly (i think). Then I created a new project again using existing source and selected the "Simple" example. Its came up with errors. I went in the properties and selected Build Path section and added the facebook SDK project and applyed. All

问题 I am trying to connect to a MongoDB database hosted on mlab using the Java driver on a servlet. import org.bson.Document; import com.mongodb.MongoClient; import com.mongodb.MongoClientURI; import com.mongodb.client.MongoCollection; import com.mongodb.client.MongoDatabase; public class MongoConnection { protected void connectToMongo(String loc){ String dbName = "readings"; String collection = "data"; MongoClientURI uri = new MongoClientURI("mongodb://user:pass@ds143109.mlab.com:43109/readings"

问题 So far I got this error only for one user, who uses a rooted phone (SM-G900R7 Android 4.4.2). The error is like this: Fatal Exception: java.lang.NoClassDefFoundError: android/graphics/drawable/Icon at java.lang.Class.getDeclaredMethods(Class.java) at java.lang.Class.getDeclaredMethods(Class.java:656) at android.view.ViewDebug.getExportedPropertyMethods(ViewDebug.java:960) at android.view.ViewDebug.exportMethods(ViewDebug.java:1047) at android.view.ViewDebug.dumpViewProperties(ViewDebug.java

问题 I have actually figured this problem out, but it took me days, so I thought I would paste my solution here to aide others. I am using Fedora 11, and in Eclipse I tried adding a Tomcat 6 server and starting it. I would get the following error: 'Starting Tomcat v6.0 Server at localhost' has encountered a problem. Server Tomcat v6.0 Server at localhost failed to start. Then in my console I got the following: Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/juli/logging

问题 I've tried both the example in Oracle's Java Tutorials. They both compile fine, but at run-time, both come up with this error: Exception in thread "main" java.lang.NoClassDefFoundError: graphics/shapes/Square at Main.main(Main.java:7) Caused by: java.lang.ClassNotFoundException: graphics.shapes.Square at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net

问题 I've tried both the example in Oracle's Java Tutorials. They both compile fine, but at run-time, both come up with this error: Exception in thread "main" java.lang.NoClassDefFoundError: graphics/shapes/Square at Main.main(Main.java:7) Caused by: java.lang.ClassNotFoundException: graphics.shapes.Square at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net

问题 I create a simple webapp using tomcat 6, spring 2.5.6 and maven. The problem is when I boot up tomcat, I am getting the following errors: SEVERE: StandardWrapper.Throwable java.lang.NoClassDefFoundError: org/springframework/ui/ModelMap ... Caused by: java.lang.ClassNotFoundException: org.springframework.ui.ModelMap The ModelMap class does exist in spring-2.5.6.jar and spring-context-2.5.6.jar , I also have some other spring jars. All of them are being deployed to tomcat correctly, when I

问题 I am trying to implement an autocomplete Combo in SWT using AutocompleteComboInput. I have added net.sf.swtaddons_0.1.1_bin_src.jar to the library via "Add External JAR". import net.sf.swtaddons.autocomplete.combo.AutocompleteComboInput; ... subjectCodeCombo = new Combo(tab3Composite, SWT.DROP_DOWN); // other code modifying Combo appearance here... // returns a String[] of items retrieved from database String[] subjectCodeArray = dbQuery.subjectsToArray(); subjectCodeCombo.setItems