NoClassDefFoundError
NoClassDefFoundError is an error that occurs in Java when the Java Virtual Machine (JVM) attempts to load a class at runtime but cannot find its definition. This is distinct from ClassNotFoundException, which typically occurs during lookup operations. NoClassDefFoundError indicates that the class was available during compilation but is missing or inaccessible during the execution phase.
Common causes for this error include issues with the classpath. The classpath is a system of paths
Another frequent cause is a dependency problem. A class might depend on another class that is not