To open “Eclipse” you need to install the legacy Java SE 6 runtime

Question

Just installed a fresh version of Kepler 64bit \"for Java Developers\" on Yosemite, getting this error on first launch. Any thoughts on how to fix? Really do not want to downgra

Answer 1

tldr; This error may indicate you don't have Java, and you can fix by installing the latest version of Java instead of the "legacy" version

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I received this error while installing Eclipse on a fresh MacBook with macOS Sierra, version 10.12.3, which apparently does not have ANY java installed. I made the problem go away by installing java version 1.8 JDK and then had no trouble installing Eclipse after.

i.e. before installing

MacBook-Pro:$ java -version
No Java runtime present, requesting install.

and after installing

MacBook-Pro:$ java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)

Answer 2

I had JDK 7 installed on Yosemite, and upgrading Eclipse to Luna fixed this issue for me

Answer 3

I was facing this trouble for hours. I followed every suggestion I could find over numerous forums with no success. I resolved the issue by simply installing 1.8.x JDK instead of the JRE, despite having no intension to develop for Java. I guess eclipse requires this.

Answer 4

I ended up relenting and downloading Java 6 from here:

http://support.apple.com/kb/DL1572?viewlocale=en_US&locale=en_US

Apparently this seems to coexist ok with the latest Java version which I also installed (version 8 update 25) and version 8 shows up as the version I'm running when I verify from

https://www.java.com/en/download/installed.jsp

I'm unclear on the security implications of this though, would have preferred another solution, if anyone finds a better solution than installing 6 please let me know.

Answer 5

For me this worked :

Edit /Applications/mat.app/Contents/Info.plist

And at he bottom where the to use a specific Java version section start you reference the libjli.dylib like so

<string>-vm</string><string>/Users/jkuperus/.sdkman/candidates/java/11.0.2-open//lib/jli/libjli.dylib</string>

Answer 6

My Mac crashed and after the restart I had the same issue. Turned out that for some reason the file /usr/libexec/java_home was missing. After symlinking it to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java_home, Eclipse now starts without any complains.