Hi
I am trying to add force.com plugin with eclipse but its gives error.

My system is under firewall and i specify all proxy setting in eclipse.

!SUBENTRY 1 org.eclipse.update.core 4 0 2008-06-04 12:44:42.273 !MESSAGE The File "C:\DOCUME~1\OK76384\Local Settings\Temp\eclipse\.update\1212555238231\1212555238389\eclipse10130.tmp" is not a valid JAR file. [error in opening zip file] !STACK 0 java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(Unknown Source) at java.util.jar.JarFile.<init>(Unknown Source) at java.util.jar.JarFile.<init>(Unknown Source) at org.eclipse.update.internal.verifier.CertVerifier.init(CertVerifier.java:77) at org.eclipse.update.internal.verifier.CertVerifier.verify(CertVerifier.java:129) at org.eclipse.update.core.Feature.verifyReferences(Feature.java:967) at org.eclipse.update.core.Feature.install(Feature.java:377) at org.eclipse.update.internal.core.SiteFile.install(SiteFile.java:96) at org.eclipse.update.internal.core.ConfiguredSite.install(ConfiguredSite.java:155) at org.eclipse.update.internal.core.ConfiguredSite.install(ConfiguredSite.java:119) at org.eclipse.update.internal.operations.InstallOperation.execute(InstallOperation.java:92) at org.eclipse.update.internal.operations.BatchInstallOperation.execute(BatchInstallOperation.java:84) at org.eclipse.update.internal.ui.wizards.InstallWizard2.install(InstallWizard2.java:373) at org.eclipse.update.internal.ui.wizards.InstallWizard2.access$1(InstallWizard2.java:370) at org.eclipse.update.internal.ui.wizards.InstallWizard2$1.run(InstallWizard2.java:483) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)