Can not start eclipse due to org.eclipse.core.runtime

I copied some plugins into my eclipse installation (specifically Green and ObjectAid from this answer).
I deleted them (since it did not work) but now I can not get eclipse to start (even with eclipse -clean).
I get:

!SESSION 2013-02-08 16:21:16.949 ----------------------------------------------- eclipse.buildId=M20110210-1200 java.version=1.6.0_29 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=el_GR Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product -clean

!ENTRY org.eclipse.osgi 4 0 2013-02-08 16:21:17.779 !MESSAGE Application error !STACK 1 java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini). at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:74) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) at org.eclipse.equinox.launcher.Main.run(Main.java:1408)

My config.ini seems ok. I compared it with a downloaded version of Eclipse Helios and they are the same.

#This configuration file was written by: org.eclipse.equinox.internal.frameworkadmin.equinox.EquinoxFwConfigFileParser   
#Fri Feb 08 14:57:16 EET 2013  
org.eclipse.update.reconcile=false  
eclipse.p2.profile=epp.package.jee  
osgi.instance.area.default=@user.home/workspace  
osgi.framework=file\:plugins/org.eclipse.osgi_3.6.2.R36x_v20110210.jar  
equinox.use.ds=true  
eclipse.buildId=M20110210-1200  
osgi.bundles=reference\:file\:org.eclipse.equinox.simpleconfigurator_1.0.200.v20100503.jar@1\:start  
org.eclipse.equinox.simpleconfigurator.configUrl=file\:org.eclipse.equinox.simpleconfigurator/bundles.info  
eclipse.product=org.eclipse.platform.ide  
osgi.splashPath=platform\:/base/plugins/org.eclipse.platform  
osgi.framework.extensions=  
osgi.bundles.defaultStartLevel=4  
eclipse.application=org.eclipse.ui.ide.workbench  
eclipse.p2.data.area=@config.dir/../p2/

How can I solve this?

Doing a difference in the plugins folder I see the following missing:

C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jem.workbench_2.0.300.v200910290230.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jem_2.0.400.v201005110200.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.common.frameworks_1.1.403.v201012160000.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.common.ui_1.0.3.v201101101700.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.j2ee.core_1.2.4.v201102101900.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.j2ee.web_1.1.404.v201102030400.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.j2ee_1.1.404.v201102081800.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.jee_1.0.302.v201101122300.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.jsp.core_1.2.304.v201102160550.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.jsp.ui_1.1.503.v201101262228.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.server.core_1.2.101.v20100421.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.jst.server.ui_1.1.101.v20100823b.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.common.emfworkbench.integration_1.2.3.v201012020600.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.common.frameworks_1.2.0.v201003040800.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.common.modulecore.ui_1.0.4.v201101101700.jar   
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.common.modulecore_1.2.5.v201101270100.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.css.core_1.1.402.v201102031915.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.dtd.core_1.1.401.v201101122255.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.html.core_1.1.404.v201101190004.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.internet.monitor.core_1.0.404.v20090609.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.internet.monitor.ui_1.0.405.v20100309.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.core_1.1.4.v201102102045.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.debug.core_1.0.3.v201011040143.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.debug.rhino_1.0.1.v201008170101.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.debug.ui_1.0.3.v201011040143.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.ui_1.1.4.v201102160540.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.web.core_1.0.304.v201102160550.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.web.support.jsp_1.0.303.v201012160047.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.jsdt.web.ui_1.0.304.v201012160349.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.server.core_1.1.206.v20110110.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.server.discovery_1.0.101.v20100707.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.server.ui.doc.user_1.1.300.v201005192125.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.server.ui_1.1.207.v20110119.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.sse.core_1.1.504.v201102160550.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.sse.ui_1.2.3.v201102102045.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.standard.schemas_1.0.300.v201004110600.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.validation.ui_1.2.204.v201004150700.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.validation_1.2.201.v201101270100.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.web.ui_1.1.400.v201004141630.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.web_1.1.402.v201012160000.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.ws.explorer_1.0.507.v201004220342.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.ws.service.policy.ui_1.0.202.v201004211732.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.wsdl.ui_1.2.304.v201012071645.jar    
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.wsdl_1.2.104.v201012082239.jar    
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.xml.core_1.1.503.v201102102045.jar  
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.xml.ui_1.1.103.v201101122108.jar
C:\eclipse-jee-helios-SR2-win32\eclipse\plugins\org.eclipse.wst.xsd.ui_1.2.304.v201101251958.jar

I think you might have deleted some critical folder inside the 'plugins' directory. If I were you, I would compare the freshly downloaded and extracted Eclipse installation contents, directory-wise, with the one that has problems starting.

shawn

This error happens because you deleted the config.ini file when you deleted the plugins. So, when it can not find configuration in config.ini when eclipse launches, then it uses a default configuration which does not fit with your OS. The following steps solve your problem:

Delete setting in configuration folder.
create a new config.ini file.
copy following setting and save.
restart Eclipse.

These are the settings:

osgi.splashPath = platform:/base/plugins/org.eclipse.platform  
osgi.bundles=org.eclipse.equinox.common@2:start, 
    org.eclipse.update.configurator@3:start, org.eclipse.core.runtime@start  
eclipse.product=org.eclipse.sdk.ide  
osgi.instance.area.default=@user.home/workspace  
eof=eof

I had the same problem today because of an unespected shutdown of my computer and i solved in this way:

find the configuration directory .eclipse (usually in windows C:\Users\{user}\.eclipse\{eclipse version}
delete that directory
restart eclipse

So the config directory will be recreated and you should re-download your plugins

来源：https://stackoverflow.com/questions/14774686/can-not-start-eclipse-due-to-org-eclipse-core-runtime

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