Eclipse executable launcher error Unable to locate companion shared library

Question

I had Eclipse Indigo installed on my computer with the Android plugin and it was working perfectly for about two weeks  Today  I updated java and quicktime then restarted my computer  When it booted back up  eclipse had completely vanished - all the program files have completely disappeared  When I try to reinstall it  I get an error message that says      The Eclipse executable launcher was unable to locate its companion shared library     What happened and how can I fix it

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I had the same message after a system restore with the eclipse folder (V. 3/2020) being located on a second drive (that was NOT restored at the same time, I use it for large files mainly).

Restoring the faulty installations C:\Users<user>.p2 folder to the new installation (referenced in eclipse.ini of the eclipse folder) worked.

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I encountered this error with the Eclipse 4 10 installer   We had failed to complete the install correctly due to platform security settings and attempted to uninstall but had to do it by hand since no uninstaller was introduced during the failed install   We suspected this corrupted the end result - even after re-installing   The solution was to use the JVM to launch Eclipse and bypass the launcher executable entirely   The following command successfully launches Eclipse 4 10  some parameters will change based on the version of Eclipse     JDK190  bin javaw exe -jar C   lt fully qualified path to eclipse gt  Eclipse410 plugins org eclipse equinox launcher 1 5 200 v20180922-1751 jar -clean -showsplash   After using this command shortcut to launch Eclipse we had no further errors with Eclipse itself but we weren t able to use the EXE launcher in the future   Even after a year of using this version  the launcher continues to display this same error   To be clear  you ll have to modify your javaw exe command to match your system specifications on MS Windows

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I faced this problem and solved it by running Eclipse as admin

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Keep shorter folder name  fixed for me

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I just ran into this myself and found that  indeed  as one post above stated  using cygwin and gunzip or unzip to set up your eclipse environment the permissions on the  exe and  dll files will be incorrect and the JVM will not run them properly  Quick solution    switch to the eclipse target folder cd  cygdrive c Program  Files    x86    or wherever you put eclipse find    -regextype posix-extended -mindepth 1 -type f -regex      exe     dll     xargs chmod -v 750

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Also see this related question s answer   The gist is  Try unzipping it again with a solid unzip tool  Sometimes unzipping goes wrong  especially with the built-in Windows Explorer tool

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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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Problem happened when I unzipped using Cygwin   Used the Windows XP standard unzip program and it worked

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I have create Demo exe using Eclipse RCP   I have run Demo exe using C-Drive to same error generate like     Solution   You might changed your drive for example  C  Demo exe to D  Demo exe   Step 1   First Copy Cut your  exe file like C  Demo exe Step 2   After Paste another drive like D  Demo exe  After executable file launching successfully  I hope my answer is useful

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You might changed your drive-letter  once u had installed eclipse on D    after windows reinstall the drive-letter is now E    for example    look into eclipse ini in your eclipse folder  there are some lines where the drive-letter is still D

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That sounds pretty bad and weird  But reinstalling isn t that hard - download  unzip  change the default memory allocation  run Eclipse  install necessary plugins and features   And almost all of the important preferences are in your workspace  The only important one I can think of outside of the workspace is the aforementioned memory allocation  which you can set on the command line or in the ECLIPSE INI file

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i have this error message when i use extract the files as follows    action select all drag and drow the files to an new folder   Somehow information about the folders get lost  when i use  action extract to     it works   Also  remember to right click on eclipse  then choose Security Unblock

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I had the same problem when I was trying to install it on Windows 8  But it was an zip composed file     Ones I unzip and Run  eclipes exe  file as run As  Administrator  it was resolved   Now I  am enjoying it very well

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remove it and run eclipse-installer again without root

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Mostly this is related to problems on windows with the unzipping it seems   See other answers here for that    The second largest issue seems to be that eclipse is not able to find java or finds a java version which is too old or even older eclipse installations   Here s another take to the latter problem and a small twist to solve it  My work environment is on a linux system  without root access  and with software installations where I can configure which versions to use in a kind of config file  However I have no influence on the way those software packages are installed and they are immutable to me   I download and untar the latest eclipse as usual to a user disk for which I have write permissions  Then I configure myself an alias to always temporarily cd into the eclipse installation when starting  That regardless of where I work on the file systems  eclipse always finds its correct libraries  It seems in some places  eclipses default search path for java digs out an installation  of java or older eclipses or sth else  in my environment that it really should not use   Here s the alias  alias eclipse   pushd  enter path to eclipse install dir here eclipse     eclipse   popd    Now you can start it normally from e g  your project or arbitrary work directory   eclipse   Or also put it in the background  eclipse  amp    Maybe this helps for people in convoluted work environments

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Solution for Mac  Reason  Eclipse copies from one location to other  Solution  Paths change needed in  Applications eclipse Eclipse app Contents MacOS eclipse ini  Fix path for plugins org eclipse equinox launcher 1 0 100 v20080509-1800 jar

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I meet this issue after copy a eclipse installation to another pc I find the eclipse installation auto created the  p2 directory on my c  Users xx p2  and --launcher library refer to here So it doesn t exist on my another pc  My resolution is to reinstall eclipse  a Double click eclipse-inst-win64 exe b Click to change to advanced mode  c Uncheck the Bundle Pool d Finish your installation and copy again Everything will work well

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I got similar error sometime back  I had copied the eclipse setup from another laptop to mine  The issue with my setup was that path of the  --launcher library  in the eclipse ini file  The path in --launcher library was that of the old machine and hence  I was getting the error  I changed the path of  --launcher library  in eclipse ini to the path of eclipse on my laptop and the issue got resolved  I hope this is helpful to someone is getting this error

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This happened to me when I tried to open eclipse exe before the  zip file finished extracting   Make sure all dependencies are unzipped or unpacked before opening the  exe

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I ve just encountered the same issue  The problem for me was Windows 7 default unzipper program  It has a problem when it encounters files that have a deep file structure  I read about this issue some time ago but can t recall the article  Fix for me is to unzip the Eclipse download using WinZip  or some other tool which does nt have this issue

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I have seen this in MacOS Sierra  Sometimes unzipping the app leaves extended attributes that seem to prevent the startup  The following command line removes extended attributes and seems to fix the problem    xattr -c Eclipse app  It also works for other applications that are built on the eclipse framework

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My experience and advice  Install Eclipse Juno on C  drive    After download the zip  put it on C   click the right mouse button -  extract here  Then a folder called eclipse will be created in C  drive    Then go to Eclipse executable  run it  and all will be ok

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I have copied the Eclipse folder from another machine where the path was different and that was the root of this problem  Changing the plugins path in ECLIPSE INI worked for me

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During unzip in a cygwin directory on Win7   exe and  dll need to be given executable mode   This is the solution from a mintty  or other  TERM  terminal run with cygwin on windows 7   me mymachine   eclipse   find   -name    dll  -exec chmod  x         tried with Juno  eclipse 4 2  freshly unzipped  cygwin 1 7 something

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I had this issue on Linux  CentOS 7 64 bit  with 32-bit Eclipse Neon and 32-bit JRE 8  Non of the answers here or in similar questions were helpful  so I thought it can help someone   Equinox launcher  eclipse executable  is reading the plugins  directory and then searches for eclipse xxxx so dll in org eclipse equinox launcher  lt os gt   lt version gt    Typically  the problem is in eclipse ini pointing to the wrong version of Equinox launcher plugin  But  if the file system uses 64-bit inodes  such as XFS and one of the files gets inode number above 4294967296  then the launcher fails reading the plugins  directory and this error message pops up  Use ls -li  lt eclipse gt  plugins  to check the inode numbers    In my case  moving to another mount with 32-bit inodes resolved the problem   See  http   www tcm phy cam ac uk sw inodes64 html

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I also faced ths problem  I just deleted the extracted file and extracted it again    I have a  rar file   This problem occurs when the file is not extracted completely

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Check eclipse ini  there are two entries like   -startup plugins org eclipse equinox launcher 1 3 0 v20120522-1813 jar --launcher library plugins org eclipse equinox launcher gtk linux x86 64 1 1 200 v20120913-144807   For some twisted reason jars have version in their name - so if you upgrade have two different version of eclipse  while eclipse ini is either linked or provided as system wide conf file for eclipse   it will cause above error

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if you are having two eclipse then sometime this happens    you only have to remove   -startup plugins org eclipse equinox launcher 1 0 100 v20080509-1800 jar    from eclipse ini file beside eclipse exe Launcher

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Another problem  that I ran into  is that Cygwin s unzip utility  UnZip 6 00 of 20 April 2009  by Cygwin  Original by Info-ZIP   does not always correctly unzip everything needed for Eclipse to actually run   Using 7ZIP v9 20 got Eclipse Indigo  3 7 2  up and running for me on Win7 64bit with 32bit JVM and 32bit Eclipse    First time I ve ever had Cygwin s unzip fail on me

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Try running eclipse exe as administrator or using Eclipse Helios

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Restart the machine  Solve your problem  Sometimes it happens when you are trying to restart the eclipse and in-between forcefully close it

[eclipse] Eclipse executable launcher error: Unable to locate companion shared library

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