Java Jar Could Not Find Or Load Main Class Stack Overflow

Java Error Could Not Find Or Load Main Class Mainclass Stack Overflow If you try to run this jar with java jar app.jar, it will complain that it cannot find the app class. this is because the packages inside app.jar don't match the actual packages in the project. Let's dive into what causes this error and how to solve it. the error essentially means that the java virtual machine (jvm) could not load the class containing the main () method, which is the entry point for any standalone java application. here's a common representation of the error:.

Java Jar Could Not Find Or Load Main Class Stack Overflow Explore the reasons for the error "could not find or load main class" and learn how to avoid them. To run a jar file, pass the jar option to java. otherwise it assumes the given argument is the name of a class, not the name of a jar file (specifically in this case it's looking for a class named jar in a the package icchecker). so java jar icchecker.jar will work.

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