使用 Pydev 在 eclipse 中创建 python 项目失败，为什么？

Question

Error: 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 (547).

Answer 1

This error occurs as a result of installing the wrong version of PyDev for the version of Eclipse that you're using (found a hint on SO here ).

For example, I ( Edit : used to ) use Eclipse Luna (Service Release 2, v4.4.2). I tend to lose my plugins / settings every time I update Eclipse on a Mac, and I'm too lazy to look into why, so I've avoided updating. Which is how I ran into the problem you describe here.

The version of PyDev available in the Eclipse Marketplace is, as of this writing, 6.5.something. You'd think Eclipse would be smart enough not to allow incompatible plugins to be installed with the Marketplace installer, but nope.

Look here for an idea of which version of PyDev you need to work with your version of Eclipse (check the "About" box within Eclipse), then follow the instructions here to download the appropriate.zip from SourceForge , extract it, and move the extracted files into the dropins directory, preserving the hierarchy that existing inside the archive.

For Eclipse Luna (4.4), I found that PyDev 5.2.0 seems to work fine (so far).

Note that the location of the dropins folder may vary by operating system. Once upon a time, I bookmarked this reference (for Luna) from the Eclipse help, and it may be useful somehow.