Whenever I add this repository:
http://download.eclipse.org/windowbuilder/WB/integration/4.7/
and try to install WindowBuilder, the following error appears after 48%:
An error occurred while collecting items to be installed session context was:(profile=epp.package.java, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=). Unable to read repository at http://download.eclipse.org/windowbuilder/WB/integration/4.7/plugins/org.eclipse.wb.rcp.databinding.emf_1.9.1.201710100405.jar. Read timed out