在 eclipse 中找不到主 class、jar

Question

I need to make an executable jar for my ending project and I keep getting the "Could not find main class"....

I've tried with export > runnable jar and export > jar file (and I did chose the main) in both cases I get the same error.

Details in the runnable:

My run configurations for the main of the project:

The dependencies in my project:

I'm totally lost and i don't know where's the problem

Answer 1

Verify that you can start your application like that:

java -cp myjarfile.jar Principal.java

You're double-clicking the file on a windows explorer window? Try to run it from a console/terminal with the command

java -jar myjarfile.jar

Please check below link for further clarification. Running JAR file on Windows