pydev for Eclipse 无法正常使用

The selected wizard could not be started.
Plug-in org.python.pydev was unable to load class org.python.pydev.ui.wizards.project.PythonProjectWizard.
An error occurred while automatically activating bundle org.python.pydev (506).

解决方案：
安装旧版pydev需要添加安装地https://dl.bintray.com/fabioz/pydev/old/，并去掉选项Show only the lastest version of available software。