First, I download PDT, which is latest version Neon 4.6.1. https://www.eclipse.org/pdt/
Second, I download subversive which is latest version 4.0.2 for neon.https://eclipse.org/subversive/latest-releases.php.
Third, install subversive by steps and restart eclipse.
Everything is ok.
Then open Windows->Preferences->Team->SVN,will find SVN Connector combobox is empty.I know i need to install SVN Connector now.
Forth, download and install subversive connector with the latest version 6.0.0. http://community.polarion.com/projects/subversive/download/eclipse/6.0/builds/?__hstc=2015854.c7d284170a44fe73e529496bb0f74d2d.1479204107043.1479204107043.1479266265875.2&__hssc=2015854.1.1479266265875&__hsfp=2552076761
I have restarted my eclipse, but unfortunately svn connector is still empty. Why? What's the trick or possible reasons?