I keep getting the same error message, and I've tried every solution I've seen (change https to http, uncheck "Contact all update sites", I've manually downloaded the package)
The error I'm getting is:
An error occurred while collecting items to be installed session context was:(profile=epp.package.standard, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=). No repository found containing: osgi.bundle,org.apache.xerces,2.9.0.v201101211617 No repository found containing: osgi.bundle,org.apache.xml.resolver,1.2.0.v201005080400 No repository found containing: osgi.bundle,org.apache.xml.serializer,2.7.1.v201005080400 No repository found containing: osgi.bundle,org.eclipse.wst.common.core,1.2.0.v200908252030 No repository found containing: osgi.bundle,org.eclipse.wst.common.environment,1.0.400.v200912181832 No repository found containing: osgi.bundle,org.eclipse.wst.common.frameworks,1.2.200.v201203141800 No repository found containing: osgi.bundle,org.eclipse.wst.common.frameworks.ui,1.2.201.v201208292200 No repository found containing: osgi.bundle,org.eclipse.wst.common.project.facet.core,1.4.300.v201111030424 No repository found containing: osgi.bundle,org.eclipse.wst.common.ui,1.1.500.v200911190730 No repository found containing: osgi.bundle,org.eclipse.wst.common.uriresolver,1.2.100.v201305141800 No repository found containing: osgi.bundle,org.eclipse.wst.sse.core,1.1.802.v201401101620 No repository found containing: osgi.bundle,org.eclipse.wst.sse.ui,1.3.201.v201401132128 No repository found containing: osgi.bundle,org.eclipse.wst.validation,1.2.501.v201311151800 No repository found containing: osgi.bundle,org.eclipse.wst.validation.ui,1.2.401.v201310231535 No repository found containing: osgi.bundle,org.eclipse.wst.xml.core,1.1.801.v201308100603 No repository found containing: osgi.bundle,org.eclipse.wst.xml.ui,1.1.401.v201308132110
I really need some help. I'm happy to provide any information someone needs. Thanks!