Java JAR file error
Sorry if i posted this in the wrong place but I have an issue with opening any Java JAR file.
Every time I launch the file it with "Jar Launcher" it comes up with an error message saying The Java JAR file "name of file" could not be launched. Check the Console for possible error messages. I tried launching with Archive Utility but it created a .cpgz file and when i opened .cpgz file it created a 2.jar file and it went in a cycle.
Help!!!
MacBook Air, macOS Sierra (10.12.5)