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I updated eclipse Luna to Mars. What I did is ...

  • Add mars url to Window > Preferences > Install/Update > Available Software Sites
  • Help > Check for Updates
  • Followed what the wizard indicated
  • Installed successfully and a pop up showed that I have to reopen this application(Eclipse)

And now, when I trying to open eclipse, A pop up message shows. It said "Can not open this application" and no other any Informations.

It seems like update successfully, so I do not have any idea what is wrong is it. How can I fix or got some clues about this situation? Thanks

FYI, I attach my eclipse.ini and result of java -version.

This is ini file

-startup
../../../plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar
--launcher.library
../../../plugins/org.eclipse.equinox.launcher.cocoa.macosx.x86_64_1.1.300.v20150602-1417
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vmargs
-javaagent:/Applications/eclipse/plugins/com.zeroturnaround.eclipse.optimizer.plugin_1.0.6/agent/eclipse-optimizer-agent.jar
-Xverify:none
-Dosgi.requiredJavaVersion=1.7
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts
-XX:MaxPermSize=256m
-Xms4096m
-Xmx4096m
-Xdock:icon=../Resources/Eclipse.icns
-XstartOnFirstThread
-Dorg.eclipse.swt.internal.carbon.smallFonts

And my version is ...

java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
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  • Use this link to find the logs it generates and put the relevant part here.
    – Codebender
    Commented Sep 4, 2015 at 2:11
  • It looks like A project fail log. But my problem is not about specified project. It is about eclipse itself. When I click the icon on the file explorer, it says can not open this application. I found some log files in eclipse package(It is in Eclipse.app/Contents/MacOS/), but it seems not relevant.(And my problem happens today, but there is no today's log)
    – Juneyoung Oh
    Commented Sep 4, 2015 at 2:25
  • From experience, I learnt that unlike most software, Eclipse doesn't play well with major release upgrades. It can easily break and have a lot of problems if you upgrade from one major release (like Luna) to another (like Mars). I find it better to just leave it at the current major release. You don't really gain much by upgrading. If you want to upgrade, it's easier to do a clean install, and export/import your customizations.
    – ADTC
    Commented May 9, 2016 at 8:18

1 Answer 1

Reset to default
1

From the What's New in Mars:

For Mars (4.5), the Eclipse SDK for OS X is now distributed in a more standard "Mac App" format, instead of the "directory format" we have used in the past.

CAUTION: Current Mac users can not use "update" to Mars. In fact, doing so will break your installation! You need to start with a fresh download.

In the event that you updated before reading this, and have ended up with a broken installation, see Issues related to Mac App installations for the steps to recover your installation, after getting a fresh download.

So you need to do a new Install (your workspace should be OK).

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  • Uh. Thanks :-) As what you mentioned I found the directories structure has been changed a lot. (inside of Eclips.app directory)
    – Juneyoung Oh
    Commented Sep 4, 2015 at 7:34

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