Possible to create JAR artifact by defining Manifest in Gradle? OK deleted the whole directory structure and started again. Directory now looks like: C:\Code\gradletest>dir /s, Directory of C:\Code\gradletest\src\main\java\Code, Directory of C:\Code\gradletest\src\main\java\Code\gradletest, C:\Code\gradletest>gradle clean :clean UP-TO-DATE, Total time: 3.599 secs C:\Code\gradletest>gradle build :compileJava :processResources UP-TO-DATE :classes :jar :assemble :compileTestJava UP-TO-DATE :processTestResources UP-TO-DATE :testClasses UP-TO-DATE :test UP-TO-DATE :check UP-TO-DATE :build. As I understand 'Main-Class' attribute of MANIFEST.MF should be set by "application" plugin application { mainClassName = appMainClassName } ... // This task must be added to the build.gradle.kts file This MANIFEST.MF file that you’ve created is irrelevant. That should have been java -jar app.jar instead of java -jar "app".. I am guessing you need package mainkt as line 1 in your main.kt source file. Wasn’t that clear from my earlier comments? Powered by Discourse, best viewed with JavaScript enabled. Problem: no main manifest attribute, in "APPLICATION_NAME.jar" Old Forum. Take time to understand ! I still get the error. no main manifest attribute spring maven (2) ... Je suis un peu fou avec cette erreur que je reçois lors de l’exécution d’un fichier JAR créé à partir de Gradle. Gradle에서 빌드 된 JAR 파일을 실행할 때 발생하는이 오류로 인해 미쳐 가고 있습니다. The META-INF has been removed. Try to change your manifest attributes like: And then just change 'hello.helloWorld' to your class, which has a main method. Then I tried to run the jar and I consistently get the “error message”. Hence, admittedly, wasn’t able to research how to set the main class correctly; pardon. The Java plugin expects Java code in “src/main/java”, and the classes should match the package structure (Code/gradletest/HelloWorld.java). Now you’ve changed your Java class so it’s now in the default package, instead of “Code.gradletest”, but all of the other references expect it to be in “Code.gradletest”. C:\Code\gradletest\build\libs>java -jar helloworld-0.1.jar no main manifest attribute, in helloworld-0.1.jar. In order to run the main method from our jar, we need to mention it inside the ‘Main-Class’ property of the manifest file (mainClass attribute in POM.xml in case of Mavenized application) which needs to be bundled with the code as well. Thank you for your effort. L'erreur indique "pas d'attribut manifeste principal, dans RxJavaDemo.jar". A jar file is produced. apply plugin: ‘java’ apply plugin: ‘application’, mainClassName = ‘Code.gradletest.HelloWorld’, and is located at: C:\Code\gradletest\src\main\java\Code\gradletest, The full directory structure (with the META-INF removed) C:\Code>cd gradletest, Total time: 3.597 secs C:\Code\gradletest>gradle build :compileJava :processResources UP-TO-DATE :classes :jar :assemble :compileTestJava UP-TO-DATE :processTestResources UP-TO-DATE :testClasses UP-TO-DATE :test UP-TO-DATE :check UP-TO-DATE :build, Total time: 4.703 secs C:\Code\gradletest>, Directory of C:\Code\gradletest.gradle\2.1, Directory of C:\Code\gradletest.gradle\2.1\taskArtifacts, 31 cache.properties 09/10/2014 12:06 PM, 17 cache.properties.lock 09/10/2014 12:06 PM, 18,790 fileHashes.bin 09/10/2014 12:06 PM, 19,282 fileSnapshots.bin 09/10/2014 12:06 PM, 18,602 outputFileStates.bin 09/10/2014 12:06 PM, Directory of C:\Code\gradletest\build\classes, Directory of C:\Code\gradletest\build\classes\main, Directory of C:\Code\gradletest\build\dependency-cache, Directory of C:\Code\gradletest\build\tmp, Directory of C:\Code\gradletest\build\tmp\compileJava, Directory of C:\Code\gradletest\build\tmp\jar. gradle clean followed by gradle build results in: Total time: 3.584 secs C:\Code\gradletest>gradle build :compileJava UP-TO-DATE :processResources UP-TO-DATE :classes UP-TO-DATE :jar :assemble :compileTestJava UP-TO-DATE :processTestResources UP-TO-DATE :testClasses UP-TO-DATE :test UP-TO-DATE :check UP-TO-DATE :build, Total time: 3.869 secs C:\Code\gradletest>, AND the MANIFEST.MF file reads as: Manifest-Version: 1.0 Created-By: 1.8.0-b132 (Oracle Corporation) Main-Class: Code.gradletest.HelloWorld, STILL unable to RUN the application. $ java -jar build/libs/gradle-java.jar no main manifest attribute, in build/libs/gradle-java.jar. However, I have been through the documentation and Gradle produces a jar file, I cannot run the jar file. I am a noob. I still get: no main manifest attribute, in helloworld-0.1.jar. Manifest 속성을 조작하려고했지만 종속성이나 무언가를 추가하는 것을 잊은 것 같습니다. Du kannst also einfach rennen You appear to have “HelloWorld.java” in the root of your project. I'm kind of going crazy with this error I get when running a JAR file built off Gradle. Since your are running an executable jar file, Java will look for the manifest MANIFEST.MF located under META-INF/ which contains information about the files packaged.. Java must know the main class to run. What exactly am I doing wrong? When you run self-executable jar, java will look for the Main-Class in MANIFEST.MF file located under META-INF folder. This information was missing in the MANIFEST.MF.Below the content of this file before adding the maven-jar-plugin : This class is the one with the main method. I will keep you posted. See Packaging Programs in JAR Files to learn how to create an executable JAR.. Learning is what I am trying to do. The JAR is not executed, of course, since we haven’t defined the main entry class in in manifest. Your example build.gradle.kts helped me a lot. If it’s not an executable JAR, then you’ll need to run the program with something like: Let me try that. However, I have been through the documentation and Gradle produces a jar file, I cannot run the jar file. Then ran java -jar command to get the same results. no main manifest attribute spring maven (2) ... Je suis un peu fou avec cette erreur que je reçois lors de l’exécution d’un fichier JAR créé à partir de Gradle. If it is not able to find an entry,then it will complain with Unable to execute jar- file: “no main manifest attribute”.. MANIFEST.MF contains information about files contained in the Jar file. Follow. Einschließlich Java-Bibliothek, die mit Gradle erstellt wurde ... Das "maven-publish" -Plugin von Gradle vereinfacht die Veröffentlichung im lokalen Repository und erstellt automatisch eine PublishToMavenLocal-Aufgabe. Answered. C:\Code\gradletest\build\libs>java -jar helloworld-0.1.jar, no main manifest attribute, in helloworld-0.1.jar. Gradle- kein Hauptmanifestattribut (2) Ich werde verrückt nach diesem Fehler, den ich bekomme, wenn ich eine JAR-Datei aus Gradle starte. New to java, kotlin, gradle, gradle DSL I stumbled upon your post trying to solve my own environment issues. DOS is case-insensitive, but Java is not. Gradle appears to be installed properly. Thanks, Directory of C:\Code\gradletest\src\main\java, Directory of C:\Code\gradletest\src\main\java\code, Directory of C:\Code\gradletest\src\main\java\code\gradletest. Bob_Paris (robert.paris) March 30, 2015, 12:53am #1. danfouts ... "no main manifest attribute" and others. To get latest had to find SDKMAN! This is something that “gradle run” does take care of for you. It won’t matter for this simple test case, but what you will NOT get with the “java -jar” approach is any additional jars in the classpath needed by a more complex main class. Why don’t you show us your current build script, full text of your Java class, full directory structure, and full directory structure of the resulting jar? I would imagine there are ways to amend the manifest with “classpath” properties that add your dependencies. In order to run the main method from our jar, we need to mention it inside the ‘Main-Class’ property of the manifest file (mainClass attribute in POM.xml in case of Mavenized application) which needs to be bundled with the code as well. What am I missing? It looks to me like you need to learn some basic principles of Java. Gradle has changed a bit. 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. I viewed the contents ( jar tf ) however I did not notice this. Trying to get a BASIC test that Gradle works properly in my environment. Trying to get a BASIC test that Gradle works properly in my environment. What do you mean by “I’ve written the Java code”? Did you ever inspect the actual contents of the jar file to see what’s in it? no main manifest attribute, in C:\Users\lb53616\Documents\cyient\watermarkImagesWorkspace\gradle\wrapper\gradle-wrapper.jar Process finished with exit code 1 commented Aug 26, 2019 by anonymous $ java -jar build/libs/gradle-java.jar no main manifest attribute, in build/libs/gradle-java.jar. 847 gradle-app.setting 09/09/2014 08:22 AM, 126 HelloWorld.java 09/09/2014 09:19 AM, apply plugin: ‘java’ //apply plugin: ‘eclipse’, mavenCentral() } // end::repositories[], compile “joda-time:joda-time:2.2” } // end::dependencies[], // tag::wrapper[] task wrapper(type: Wrapper) {, gradleVersion = ‘2.1’ } // end::wrapper[], Manifest-Version: 1.0 Created-By: 1.8.0-b132 (Oracle Corporation) Main-Class: Code.gradletest.HelloWorld, C:\Code\gradletest>gradle build :compileJava UP-TO-DATE :processResources UP-TO-DATE :classes UP-TO-DATE :jar :assemble :compileTestJava UP-TO-DATE :processTestResources UP-TO-DATE :testClasses UP-TO-DATE :test UP-TO-DATE :check UP-TO-DATE :build, Directory of C:\Code\gradletest\build\libs. Often, a suggested solution is to add or edit a jar { } section in the build.gradle file. Interesting. Gradle- no main manifest attribute 2015-09-14 14:18:11 6; No main manifest attribute after creating jar, Cmd Windows 2016-07-28 12:57:24 0; No main manifest attribute (Heroku deployment) 2016-11-03 11:50:02 0; no main manifest attribute, in application.jar The package the class is defined to be in has to match the folder structure the source file resides in. Gradle- no main manifest attribute 2015-09-14 14:18:11 6; No main manifest attribute after creating jar, Cmd Windows 2016-07-28 12:57:24 0; No main manifest attribute (Heroku deployment) 2016-11-03 11:50:02 0; no main manifest attribute, in application.jar Gradle 2.1: no main manifest attribute. Your package is “Code.gradletest”, but you’ve stored the source file in “code/gradletest”. The error reads "no main manifest attribute, in RxJavaDemo.jar" I tried manipulating the Manifest property but I think I'm forgetting to add the dependencies or something to it. 郑重声明:本站内容来源于网络,为尊重原创,本站尽力寻找并添加资料原文链接。如有侵权,请及时联系邮箱给我发信删除!, "No Main Manifest Attribute" in ----.jar Netbeans, No main manifest attribute, in gdx-setup.jar, "no main manifest attribute" when trying to execute fat jar, no main manifest attribute error for maven project, no main manifest attribute error after add volley.jar library, scala sbt assembly "no main manifest attribute", Java/Swing/Maven: no main manifest attribute, No main manifest attribute after creating jar, Cmd Windows, No main manifest attribute (Heroku deployment), no main manifest attribute, in application.jar, No main manifest attribute error when running jar, Can't execute jar- file: "no main manifest attribute". Der Fehler lautet "no main manifest attribute, in RxJavaDemo.jar". L'erreur indique "pas d'attribut manifeste principal, dans RxJavaDemo.jar". Used the jar uf to update the jar. Some lines in directory list removed for clarity purposes. C:\Code\gradletest\build\libs>jar tf helloworld-0.1.jar META-INF/ META-INF/MANIFEST.MF Code/ Code/gradletest/ Code/gradletest/HelloWorld.class, C:\Code\gradletest\build\libs>jar xf helloworld-0.1.jar shows that the MANIFEST.MF file has only 2 lines (1 blank line) Manifest-Version: 1.0. However, if you do “gradle run” at this point, it should execute the main class. and then spent a bit of time figuring out how to use gradle init to create the wrapper so that it plays nicely with Netbeans. I have tried to run it with gradle run and with the jar command. I think you should use the “application” plugin, which provides a “mainClassName” project property. 오류는 "no main manifest attribute, in RxJavaDemo.jar"로 표시됩니다. This class is the one with the main method. The JAR is not executed, of course, since we haven’t defined the main entry class in in manifest. java - with - kotlin no main manifest attribute . So I have updated the MANIFEST.MF in the jar with the MANIFEST.MF in the \build\libs directory. Gradle doesn’t use it. Some lines in directory list removed for clarity purposes. I realize it must be frustrating dealing with a problem like this. It appears that adding “mainClassName” has no effect on the manifest. I looked at your zip, and your main.kt source. apply plugin: ‘java’ apply plugin: ‘application’ //apply plugin: ‘eclipse’. HelloWorld.java now reads: ( Located at C:\Code\gradletest\src\main\java\Code\gradletest ), Total time: 4.77 secs C:\Code\gradletest>. Read the user guide section on this plugin for more information. If you also want the manifest change, then you’ll have to add something like the following to your build.gradle: With this, both “gradle run” and your “java -jar …” approach will execute the main class. In this case, you make in your manifest an attribute, which point to this class, then a jar is running. I’ve put a MANIFEST.MF file in the META-INF directory. Add back the following statement to the top of your class: And when you’re asked to provide additional information, there’s not much point in creating separate responses for each piece of information. Problem: no main manifest attribute, in "APPLICATION_NAME.jar"

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