👍 1 jar no main manifest attribute, in HelloWorldSwing. To make the jar file executable (so that the java -jar command works), specify the Main-Class attribute in MANIFEST.MF.. Then you should be able to run with java -Djava.ext.dirs=lib/ -jar jstylo-2.9.0-jar-with-dependencies.jar. java -jar yourjar.jar my.package.Main. The -jar option only works if the JAR file is an executable JAR file, which means it must have a manifest file with a Main-Class attribute in it. jar Namun, ini seperti di bawah ini dijalankan The only problem im running into, is that once i have created the jar file and i try to run it, i received the message “no main manifest attribute”. I have already tried running with admin as well as running it with java-8 since I read somewhere forge uses older versions of java. I try to run the java file from terminal, using: cd Downloads java -jar file cba typing it all out.jar but I get told: no main manifest attribute, in forge-1.15.2-31.2.0-universal.jar Please help? This happens because the project is being built by Maven and the Main Class you specified in the Netbeans properties is not exported by Netbeans to Maven’s pom.xml file; in other words: Netbeans knows what your main class is but Maven doesn’t. I am trying to create a jar file through the terminal instead of using eclipse. I use Linux, and I am not familiar with Java at all. no main manifest attribute, in "app.jar" Normally, if I had created the program myself, I would have added a main class attribute to the manifest file. java -Xms256m -Xmx512m -jar forge-1.14.4-28.1.71-universal.jar nogui no main manifest attribute, in forge-1.14.4-28.1.71-universal.jar The OS is centOS7. (Perhaps you can copy the jar from the target dir, but I haven't tried.) // MANIFEST.MF Manifest-Version: 1.0 Created-By: 1.8. But in this case, since the file is from an application, i cannot do that. In Gradle, you can do it by configuring the jar task.. for Groovy DSL see these answers (, ); for Kotlin DSL you can use the following code snippet:; tasks.withType { manifest { attributes["Main-Class"] = "com.caco3.Main" } } 0_91 (Oracle Corporation) Main-Class: HelloWorldSwing // run ~ java -jar HelloWorldSwing. Jar file missing Permission Attribute: Permissions Attribute verifies that the application requests the permission level that developer specified. If it's not an executable JAR, then you'll need to run the program with something like: java -cp app.jar com.somepackage.SomeClass Since it is linux I figured i needed either the universal or source folder, both files say; no main manifest attribute when I try to run it though. If your jar's MANIFEST file doesn't contain "Main-Class" than you can n ot run Java program us ing the command "java -jar name.jar", it will result in "Failed to load Main-Class manifest attribute from jar". I have tried making my own manifest … I have a main in one of my .jar files. You can use the mvn package command to build the jstylo-2.9.0-jar-with-dependencies.jar jar. you get “no main manifest attribute”.

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