Can't execute jar- file: “no main manifest attribute”

Question

I have installed an application, when I try to run it (it\'s an executable jar) nothing happens. When I run it from the commandline with:

java -jar \

Answer 1

I found a new solution to bad manifest generation !

1. Open the jar file with a zip editor like WinRAR

2. Click on for META-INF

3. Add or edit

   • Add:

     • Create a text file called MANIFEST.MF in a folder called META-INF and add the following line:

       • Manifest-Version: 1.0
       • Main-Class: package.ex.com.views.mainClassName

     • Save the file and add it to the zip

   • Edit:

     • Drag the file out modify the MANIFEST.MF to add the previous line

4. Open cmd and type: java -jar c:/path/JarName.jar

It should work fine now !