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)