eclipse neno installer install multi versions

Question

I intalled "eclipse-javase neno" and "eclipse-php neno" with "eclipse installer",and then installed pydev plugin in "eclipse-javase", but when I opened "eclipse-php" ,in the "perspective" "pydev" also showed up ,but error occured when clicking on it.I am wondering if it is possible to seprate the two eclipse versions from influencing each other.

Answer 1

You have to use each installation with its own workspace, because the window layout (including the perspective switch buttons at the top right which are displayed once a perspective has been used) is stored in the .metadata subfolder of the workspace.

If you want to edit a project with different installations/workspaces, import the project via Existing Projects into Workspace without the option Copy the projects into workspace.