I have set the path as suggested and now I compile the program by simply typing javac. If any problem with bin folder then it will help. Not sure what is wrong, can you please help? If the class file is not found by the java program, then there is a problem there. So if you are not able to solve that problem by following steps here, do let me know and I will try to work with you to troubleshoot the problem. ClassName, I think I have discussed this in the article as well. Now, what if you want to run this program from any other directory? I am getting the above message and I have entered the command: java -cp RunTestAndDisplayResults Why does this screen appear in the windows command prompt and what can I do to run my program.
It helped me a lot as beginner. When you run the program in debug mode, you can see exactly which class the program is not able to found. Once you have generated a Byte Code you can switch it over to any device and it will be able to convert into the machine code and run it perfectly without you having to do anything. For the curious reader, I would suggest reading my post , a must read for a beginner. For a deeper understanding of this concept, you need to learn some information about class path as well.
Does the code below look familiar to you? Hope this information is helpful. You can further read to learn more about setting and building Java projects in Eclipse. System and user classpaths usually do more harm than good. What have you put as Main Class etc? The of Java are widely used for the development of application software and its deployment in cross-platform computing environments. HelloWorld I get the following error Unrecognized option:-cp. Ways to Fix Error could not find or load main class in Eclipse 1. If everything works fine after a clean boot, you can infer that some third party services are causing the problem.
Do you happen to have any clues on this situation? You can Google how to disable signing in IntelliJ, but it doesn't explain why execution fails. Make A Cleanup There are many things that prevent Java to compile properly and this is one of them. Reasons Why You Received This Error Message There may be several reasons that may cause this error message to appear on your screen. Note, additionally, that you do not need to specify -Xms in your arguments. Stephan van Hulst wrote:The index file is used to speed up the process of finding class definitions.
Do I need to type java -cp. Saptaparna Dhar wrote:Thank you for your assistance. Initially, you can start by checking the class name and the class path settings. So, what should we do now? In eclipse if we run application Run as java program then eclipse will give default path as the User entries in class path in Run configurations. Then eclipse will restore the user entries. Hi Fionah, Thank you for posting your question on Microsoft Community! It doesn't matter how those class files are created, but, what is important is the location of the class file. Two things i can think of not using the -cp option is 1.
Until you fix this issue, your project will not compile and no class is created in the bin directory, hence when you run your Java program, Eclipse's classloader will not find the main class and throw this error. TheClassName Remember that this command should be called from the same directory where thepackagename directory exists. Now run it error may go. If you like to , see that tutorial. Just deleting the run configuration and re-creating it by running the class as right click, Run as Java program will fix the error. If you fail to do that, or if you do that incorrectly, then Java will not be able to identify the class, and you are likely to receive this error message. Again run error may go.
Then also eclipse will give us error could not find or load main class. However, in order to guide you in the right direction; I will need some more information. If Metadata Corrupted Meta data contains project preferences if metadata corrupted project cannot be build. Using javac command,I could compile it. Debug is better way to know about it. Another common cause of this error is invoking java command with.
In order to check that, find out the correct name of your package because you have placed your main class in that package. I get an error while running a java program from command prompt said. My app compiles fine with the -classpath switch under javac however if I try to run it with -cp or -classpath. Running from Linux terminal javac -cp. Your Minecraft server will be running in the background.
User is set to run wheter logged in or not. Running from outside the package did the job for me, thanks! Note : Please go through the section: How to reset the computer to start as usual after troubleshooting with clean boot of the Kb article to boot the computer in normal startup after fixing the issue. Sometimes, those who are self-taught end up missing out on the little things that are supposed to be learned in the very beginning. This format worked in the previous exercise. HelloWorld Error: Could not create the java virtual machine.