NoClassDefFoundError will come if a class was present during compile time but not available in java classpath during runtime. Normally you will see below line in log when you get …

May 7, 2025 · You must manually change your package name preceding the name of your Main class. For instance, change 'sample.Main' to 'com.company.package.ui.Main' so it will launch …

In short, the first step to solving "Exception in thread "main" java.lang.NoClassDefFoundError" is to check if the offender class is available in classpath or not.

Jun 13, 2012 · Exception in thread ‘main’ java.lang.NoClassDefFoundError is one of the common and difficult problems that you can face when developing Java EE enterprise or standalone …

Mar 10, 2024 · Exception in thread “main” java.lang.NoClassFoundError: HelloWorld: The reason for this error: java virtual machine cannot locate a class file during runtime.

Jan 29, 2024 · Exception in thread "main" java.lang.NoClassDefFoundError One of the places java tries to find your .class file is your current directory. So if your .class file is in C:\java , you …

Check for java.lang.ExceptionInInitializerError in your log file. NoClassDefFoundError due to the failure of static initialization is quite common. Because NoClassDefFoundError is a subclass of …

Feb 2, 2024 · Solution to Exception in thread "main" java.lang.NoClassDefFoundError in Java. We need to configure a CLASSPATH environment variable so that we can fix the exception that …

May 27, 2014 · In this tutorial we will discuss How to solve No Class Def Found Error (NoClassDefFoundError). This error is thrown when the Java Virtual Machine (JVM) or an …

简单总结就是，NoClassDefFoundError发生在编译时对应的类可用，而运行时在Java的classpath路径中，对应的类不可用导致的错误。 发生NoClassDefFoundError错误时，你能看 …