The Eclipse executable launcher was unable to locate its companion launcher jar windows

Question

I am facing a small issue and need help on it   I had to re-install Windows on my laptop  After that I installed Java  extracted Eclipse and set the environment variables  namely Path to the Java bin directory and also created a JAVA HOME variable and set it  Every time I try opening eclipse exe I get the following error      The eclipse executable launcher was unable to locate its companion launcher jar    What am I missing here

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I was facing the same issue with Eclipse JUNO  amp  windows XP  After changing a lot of things in eclipse ini still it was not working and then i deleted it  i don t know why its starts working after deleting this init file  You may try for yours

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Solution for Mac  Reason  Eclipse is copied from one location to another   Solution  Need to update path s  in eclipse ini  My eclipse ini was found in  Applications eclipse Eclipse app Contents MacOS eclipse ini   We need to update the path for plugins org eclipse equinox launcher 1 0 100 v20080509-1800 jar

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On windows Eclipse installer app writes also below admin user directory  And when I started the same eclipse as normal  another  user  it could not find admin users ecplise directory  That directory is in eclipse ini file   This installer has made for neon eclipse

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I ve the same problem  and the below solution exactly work for me       Edit eclipse ini file and remove these two lines   --launcher library       eclipse plugins eclipse plugins org eclipse equinox launcher win32 win32 x86 1 1 200 v20120522-1813  Make sure make a separate copy of this file before any changing

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Windows 8 follow these 3 steps    Locate eclipse file  create shortcut on desktop  Double click on the eclipse shortcut to open the application

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I Had same problem and it seems that there is wrong  --launcher library   address in eclipse ini file  so I have just changed it and

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just add  -vm C  Java JDK 1 6 bin javaw exe     before     -vmarg in eclipse ini this works for me Hope this will help you good luck

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Please Check  eclipse ini  file   Normally there should not be any hard code path like   For example   P  eclipse plugins org eclipse equinox launcher win32 win32 x86 1 1 200 v20140603  If you see anything like this please follow these steps   1  Make Backup of the file  2  Then open the file original file in Editor  3  change the static path to  -- plugins org eclipse equinox launcher win32 win32 x86 1 1 200 v20140603  and save file and open your eclipse it will work amazing

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You have to copy in Users user  p2 and  eclipse from old location when it come from and older location  For example i made a copy from computer to another  and i had this error  then i copied those folders and it worked

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The most common reason for this message seems to be unzipping the eclipse zip file wrongly  for instance unzipping without recreating the directory structure   Therefore please unzip the zipped Eclipse again with a good unzip tool  like 7-zip  and make sure that the necessary sub directories are created during the extraction   Also make sure that the path to the unzipped Eclipse does not get very long  I ve seen cases where Eclipse was unzipped into a deeply nested directory structure  to put it at some place into an SVN repository  and that led to the same error message   If that still doesn t work  you may try launching eclipse exe with administrative rights  That should not really be necessary  but maybe your access rights are somehow broken after the re-installation of Windows

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Same issue on my Mac with a pre-packaged RCP client that was unzip only  The other answers pointed me to the eclipse ini where all the paths looked valid  tried to check the working directory of my Eclipse bundle that doesn t see that easy to do  Seems when Finder starts an application it s working directory is   so that seems to be the issue   Updated both references in my eclipse ini to absolute paths and voila   -startup  Applications RCPClient client eclipse plugins org eclipse equinox launcher 1 1 1 R36x v20101122 1400 jar --launcher library  Applications RCPClient eclipse plugins org eclipse equinox launcher cocoa macosx x86 64 1 1 2 R36x v20101019 1345

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Edit the eclipse ini file and remove these two lines   -startup plugins org eclipse equinox launcher 1 0 100 v20080509-1800 jar

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You might want to check that library     org eclipse equinox launcher  version  dist jar   and    plugins org eclipse equinox launcher gtk linux x86  version  dist   exists on your system     Make sure that the version of libraries mentioned in eclipse ini and the version that exists on your system is same  Usually after upgrade this mismatch occurs and eclipse fails to locate the required jar  Please take a look at this blog post here

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I just had this problem and it seems to be related to permissions somehow  I initially unzipped it to my Program Files folder  in Windows 8  After unzipping it directly to C  the program started normally

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open eclipse ini and replace with this    -startup plugins org eclipse equinox launcher 1 3 0 v20120522-1813 jar --launcher library plugins org eclipse equinox launcher win32 win32 x86 1 1 200 v20120522-1813 -product com android ide eclipse adt package product --launcher XXMaxPermSize 256M -showsplash com android ide eclipse adt package product --launcher XXMaxPermSize 256m --launcher defaultAction openFile -vmargs -Dosgi requiredJavaVersion 1 6 -Xms40m -Xmx768m -Declipse buildId v21 0 0-531062   this work for me  good luck

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I got this error because on Windows the Zend Studio Icon in the Start Menu was still pointing at the previous version of Zend Studio  Once I changed the target to the new path  the error went away

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My issue was much simpler  I had created a shortcut to launch the eclipse executable by dragging it from the folder to the screen  Clicking on the created shortcut icon gave the above error   Issue  the executable was getting launched from the desktop location instead of the eclipse directory where it had been unzipped   Solution  Create a new shortcut by right-clicking in the desktop area and providing the target executable from the browse window  This creates the shortcut properly and launches the executable from the right home directory

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In my case I had to redownload it  something was wrong with the one I downloaded  Its size was far much less than the one on the website

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Run eclipse exe file as an Administrator  It worked for me

[eclipse] The Eclipse executable launcher was unable to locate its companion launcher jar windows

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