The message ‘ Could not find or load main class’ means that the first step of the Java engine fetching the class for execution has failed. The java command was not able to locate the class at the correct directory. In some cases, you have to add the correct file path and point the Java terminal to the correct location.
As the name suggests, the “Main class could not be loaded or found” error means that the JVM (Java Virtual Machine) was unable to set up a default main class and generates this runtime error. The question is, can’t we find it?
The “Failed to get main class” error occurs when the JVM is unable to get the main class. This can happen for various reasons, for example: the class is declared in the wrong specific package.
The problem might be related to your course’s username syntax. In this case, change to the Hadoop directory and replace /etc/hadoop/hadoop-env.cmd with whatever company name you want, but NOT one with a large space, such as Administrator . This worked for me. I don’t know if the username needs to be set.
How to resolve error Could not find or load main class main?
Could not find or load class in Java
- Causes of errors. The error occurs because each of our JVMs cannot load the main class or package name.
- A solution to make sure you’ve found a bug. To avoid or fix the error, we need to choose an absolute package name or a character name.
- No package.
- With packaging.
How do you fix error could not find or load main class cucumber API CLI Main?
3 answers. Later I found that the configuration I did wrong again during the refactoring was wrong and then caused an error. I then clicked on the exact main application my spouse wanted to launch and selected the Move option or shortcut Ctrl + Shift + F10. Pickle student class.
Could not authenticate message could not be sent mailer error SMTP error could not authenticate?
Error: “Smtp authentication failed” is a common error when users send emails through PHPMailer with SMTP authentication. This error occurs when the job is unable to establish an SMTP connection to all mail servers.
How to fix Could not find or load main class main?
Java Leadership Syntax
- Look for a compiled version of some com.
- Load the class.
- Ensure that the actual class has a main method identifier and that the return type and modifiers are handled by public static void main(String[]) .
- Call this method, passing it one of the command-line arguments (“fred”, “bert”) “joe”, i.e. like String[] .
Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.