Error installing Eclipse IDE on windows

Question

Hello everyone this is my first question here so I apologize for any missed expectations.

EDIT 1:

Downloaded Eclipse from : https://eclipse.org/downloads/download.php?file=/oomph/products/eclipse-inst-win64.exe

64-bit Windows 8

JDK Dir: C:\Program Files\Java

/Edit 1

I need to install the Eclipse IDE for Java programming for my Computer Science class and I have been trying for two days now with no success. I tried both the 64 and 32 bit installations and I get the exact same error. It's very frustrating because whenever I search all people talk about are "plug-ins".

Here is the error I get when installing:

[2015-09-17 13:30:06] Downloading org.eclipse.rcp_root
[2015-09-17 13:30:34] An error was detected while performing the engine                  operation and the changes are being rolled back. See the log for details.
[2015-09-17 13:30:34] ERROR: org.eclipse.equinox.p2.engine code=4 An error occurred during the org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase.
  at org.eclipse.oomph.util.OomphPlugin.coreException(OomphPlugin.java:282)
  at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl$3.commit(ProfileTransactionImpl.java:523)
  at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl.commit(ProfileTransactionImpl.java:328)
  at org.eclipse.oomph.setup.p2.impl.P2TaskImpl.perform(P2TaskImpl.java:709)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.doPerformNeededSetupTasks(SetupTaskPerformer.java:2971)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.performNeededSetupTasks(SetupTaskPerformer.java:2900)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.performTriggeredSetupTasks(SetupTaskPerformer.java:2881)
  at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.perform(SetupTaskPerformer.java:2775)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage.installPerform(SimpleVariablePage.java:1151)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage.access$27(SimpleVariablePage.java:1030)
  at org.eclipse.oomph.setup.internal.installer.SimpleVariablePage$18.run(SimpleVariablePage.java:976)
  ERROR: org.eclipse.equinox.p2.engine code=0 session context was:(profile=C__Users_Techies_eclipse_java-latest-released2_eclipse, phase=org.eclipse.equinox.internal.p2.engine.phases.CheckTrust, operand=, action=).
  ERROR: org.eclipse.equinox.p2.engine code=0 Error with signed content.
  java.security.SignatureException: An error occurred while processing the signatures for the file: C:\Users\Techies\.p2\pool\features\org.eclipse.wst.xml_core.feature_3.7.0.v201502261749
    at org.eclipse.osgi.internal.signedcontent.SignedBundleHook.getSignedContent(SignedBundleHook.java:219)
    at org.eclipse.equinox.internal.p2.engine.phases.CertificateChecker.checkCertificates(CertificateChecker.java:73)
    at org.eclipse.equinox.internal.p2.engine.phases.CertificateChecker.start(CertificateChecker.java:54)
    at org.eclipse.equinox.internal.p2.engine.phases.CheckTrust.completePhase(CheckTrust.java:50)
    at org.eclipse.equinox.internal.p2.engine.Phase.postPerform(Phase.java:251)
    at org.eclipse.equinox.internal.p2.engine.Phase.perform(Phase.java:101)
    at org.eclipse.equinox.internal.p2.engine.PhaseSet.perform(PhaseSet.java:47)
    at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:75)
    at org.eclipse.equinox.internal.p2.engine.Engine.perform(Engine.java:44)
    at org.eclipse.equinox.internal.provisional.p2.director.PlanExecutionHelper.executePlan(PlanExecutionHelper.java:42)
    at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl$3.commit(ProfileTransactionImpl.java:519)
    at org.eclipse.oomph.p2.internal.core.ProfileTransactionImpl.commit(ProfileTransactionImpl.java:328)
    at org.eclipse.oomph.setup.p2.impl.P2TaskImpl.perform(P2TaskImpl.java:709)
    at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.doPerformNeededSetupTasks(SetupTaskPerformer.java:2971)
    at org.eclipse.oomph.setup.internal.core.SetupTaskPerformer.performNeededSetupTasks(SetupTaskPerformer.java:2900)

This goes on even more will post the entire thing if needed but hoping there is something obvious I am missing. I have tried re-installing JDK, rebooting, re-downloading Eclipse, installing 32-bit versions of Eclipse and JDK and 64-bit for both. I also system restored to before I started any of it and tried again on a clean boot and got the same error.

Answer 1

I just experienced a similar problem. Running the installer as administrator solved the problem for me.

So right click on the installer file (eclipse-inst-win64.exe) and then click on Run as administrator. Now just follow the prompts and you should be fine.

In case it matters, I did not update the installer, because it restarts and probably (i'm not sure) it won't restart in administrator mode.

Btw this was on a 64bit Windows 8.1 machine.

Also have a look at these two threads:

• How do I resolve an "Error reading signed content." error when installing ADT 23.0.2 in Eclipse 4.4 on OSX
• Error when try install plugin