Error java lang UnsupportedClassVersionError Unsupported major minor version

0 votes

I am trying to use Notepad++ as my all-in-one tool edit, run, compile, etc.

I have JRE installed, and I have setup my path variable to the .../bin directory.

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)
       .........................................

I think the problem here is about versions; some versions of Java may be old or too new.

  1. How do I fix it?
  2. Should I install the JDK, and setup my path variable to the JDK instead of JRE?
Jul 28, 2020 in Java by kartik
• 37,520 points
1,552 views

1 answer to this question.

0 votes

Hello @kartik,

This error means you're trying to load a Java "class" file that was compiled with a newer version of Java than you have installed.

For example, your .class file could have been compiled for JDK 7, and you're trying to run it with JDK 6.

So the solution is to either:

  • Upgrade your Java runtime or
  • Recompile the class if you have the source, using your local Java compiler (if you have one).

    javac FileName.java

For developers, this can happen if another developer checks in a .class file, and they've got a newer version of java than you have!

Hope it helps!!

Thank You!!

answered Jul 28, 2020 by Niroj
• 82,880 points

Related Questions In Java

+1 vote
1 answer

How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

This error means you're trying to load ...READ MORE

answered Jun 8, 2018 in Java by Rishabh
• 3,620 points
3,171 views
0 votes
1 answer

Getting "Unsupported major.minor version" error.

I will recommend not to upgrade the ...READ MORE

answered Feb 22, 2019 in Java by Sapan
1,479 views
0 votes
1 answer
0 votes
1 answer

Unsupported major.minor version 52.0

The issue is because of a Java ...READ MORE

answered Dec 30, 2020 in Java by Gitika
• 65,890 points
6,627 views
0 votes
2 answers

Finding WebDriver element with Class Name in java

The better way to handle this element ...READ MORE

answered Apr 10, 2018 in Selenium by nsv999
• 5,500 points
13,428 views
0 votes
2 answers

Problem while using InternetExplorerDriver in Selenium WebDriver

enable trusted connection  in internet explorer by ...READ MORE

answered Aug 31, 2020 in Selenium by Sri
• 3,190 points
9,003 views
0 votes
2 answers

What is the role of TestNG & JUnit frameworks in Selenium?

TestNG and JUnit are test frameworks . it ...READ MORE

answered Sep 4, 2020 in Selenium by Sri
• 3,190 points
2,772 views
0 votes
1 answer

Geo-location microphone camera pop up

To Allow or Block the notification, access using Selenium and you have to ...READ MORE

answered May 11, 2018 in Selenium by Samarpit
• 5,910 points
7,113 views
0 votes
1 answer

Error:“java.lang.OutOfMemoryError: Java heap space” ?

Hii, Possible causes: Simple configuration issue, where the specified ...READ MORE

answered Apr 8, 2020 in Java by Niroj
• 82,880 points
1,076 views
0 votes
1 answer

Error:“java.lang.OutOfMemoryError: PermGen space” in Maven build

Hello @kartik, When you increased MAVEN_OPTS, you increase the MaxPermSize, ...READ MORE

answered Jun 3, 2020 in Java by Niroj
• 82,880 points
1,710 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP