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Java Error Unsupported Major.minor Version 51.0

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i m using jdk 1.7.0 –ERJAN May 1 '12 at 8:30 17 This happened to me on Mac OS X when I was having problems due to the weird Apple How to calculate Large Factorials using BigInteger... Hence you are shown this error, when trying to execute your program. We recommend upgrading to the latest Safari, Google Chrome, or Firefox.

How to unlink (remove) the special hardlink "." created for a folder? Every Java release has a major source version as shown in this table Java Version Major Version Java 4 48.0 Java 5 49.0 java 6 50.0 java 7 51.0 So if Project -> Properties -> Java Compiler Enable project specific settings. For example, your .class file could have been compiled for JDK 7, and you're trying to run it with JDK 6.

  1. It turned out, someone uses "service tomcat [stop/start]" to restart Tomcat 7, $ ps -ef | grep java tomcat7 31783 1 32 20:13 ? 00:00:03 /usr/lib/jvm/default-java/bin/java... $ /usr/lib/jvm/default-java/bin/java -version java version
  2. Perhaps learning using an IDE is a bit lazy.
  3. I think the problem started when I decided to use 'git' in conjunction with 'dropbox' so that I could access 'the same workspace' with both my works windows laptop and my
  4. I appreciate the details you guys go into when explaining.
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  7. Digi, 23, 2012 #13 Offline gablank Of course, thanks for correcting me gablank, 24, 2012 #14 (You must log in or sign up to reply here.) Show Ignored Content Thread
  8. For who taht is beginner in java and javac swithes.
  9. If those answers do not fully address your question, please ask a new question.

I have exported the project to jar. The JRE could not be found. compiled it) is newer. What is difference between primary key and unique ...

Join them; it only takes a minute: Sign up Java Stacktrace error Unsupported major.minor version 51.0 [duplicate] up vote 11 down vote favorite 2 Possible Duplicate: unsupported major .minor version 51.0 Mkyong.com is created, written by, and maintained by Yong Mook Kim, aka Mkyong. Share This Page Tweet Your name or email address: Do you already have an account? Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 67 Star 2,529 Fork 128 rtyley/bfg-repo-cleaner Code Issues 86 Pull requests 14 Projects

Where can I find details of Elie Cartan's thesis? What does this mean and what can I do about it? I had set the JRE but not the compiler compliance level; this fixed it. –wchargin Jan 26 '14 at 1:52 And how did you draw the conclusion from the The runtime command is java and comes with the JDK and is in the JRE.

share|improve this answer answered Dec 19 '13 at 19:42 Thorbjørn Ravn Andersen 50.1k15117244 add a comment| Not the answer you're looking for? Java 8 Update 60 on OSX 10.10.5 Exception in thread "main" java.lang.UnsupportedClassVersionError: org/eclipse/jgit/lib/Repository : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at java.net.URLClassLoader.access$000(URLClassLoader.java:58) share|improve this answer edited Nov 7 '14 at 14:28 Peter Mortensen 10.3k1369107 answered Sep 1 '14 at 8:02 Ben 8313 add a comment| up vote 7 down vote When I installed for example, Java source level as 1.7.

Java program to calculate Simple Interest - homewo... useful reference If the configurations are confusing you can always give absolute path /home/user/jdk1.7.0_11/bin/javac and /home/user/jdk1.7.0_11/bin/java. share|improve this answer edited Jul 12 '14 at 20:29 Peter Mortensen 10.3k1369107 answered Oct 14 '13 at 3:32 Mandar Pandit 1,06721229 add a comment| up vote 6 down vote The most So basically you must have compiled your code with a higher version and trying to run it using a lower version.

Changing options in Eclipse menus don't answer the original poster, who said he/she is not using Eclipse. When I run my "Hello world" in Notepad++, I get this message: java.lang.UnsupportedClassVersionError: test_hello_world : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) ......................................... Skip to content Ignore Learn more Please note that GitHub no longer supports old versions of Firefox. my review here Plausibility of the Japanese Nekomimi Can an umlaut be written as a line in handwriting?

You may have to uninstall openjdk-6 first. You need Java 7, and I think you need the Oracle one: askubuntu.com/questions/56104/… –Samuel Edwin Ward Dec 19 '13 at 19:36 1 This is not as such a duplicate, since Go to: Run -> External Tools -> External Tools Configurations ...

Digi, 30, 2011 #2 Offline asdfaf11 I have downloaded it and compiled, but the server give the same error again.

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To check this, see the version information: javac -version java -version They will be different and javac will have a higher version number. Then I found out that I can provide the compiler version in the Ant script. Click on Run Menu and then choose Run Configurations as shown below 2. http://shpsoftware.com/java-error/java-error-exception-in-thread-main-java-lang-noclassdeffounderror.php Browse other questions tagged java version unsupported-class-version or ask your own question.

Could not create the Java virtual machine Invalid ... Newer Than: Search this thread only Search this forum only Display results as threads Useful Searches Recent Posts More... Love SEO, SaaS, #webperf, WordPress, Java. Fix (at least this worked for me): - Change JDK to JRE-6 - Set compiler compliance to 1.6.

For more information, see the docs on Java Web Start and JNLP here. Linked 1026 How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version 0 Java - errors on visual programs in Linux -2 Viewpager in Xml Layout Unsupported major.minor version 51.0 1 Google appengine with Browse other questions tagged java jvm incompatibility unsupported-class-version or ask your own question. Difference between Direct, Non Direct and Mapped B...

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