Previous projects were directly pulled down from the repository via SVN in Eclipse, so there was no question of subversion's inability to recognize TORTOISESVN checkout's project information.
This time, the project is checkout to the workspace directly through the TORTOISESVN client, and the project is imported in eclipse. After importing, SVN in eclipse cannot be associated with a project. The solution is to right-click the project--->team--->share project, and then to properly identify the subversion information in the project, allowing the project to be versioned with Eclipse.
The eclipse version is: Mars release (4.5.0), SVN version: 1.8.X. At this time the project right button, Team--->share project will be error, will prompt Org.apache.subversion.javahl.ClientException:svn:E155021:This client is Too old-to-work with the working copy at ... Information. This is caused by a mismatch between the eclipse version and the SVN plugin version.
The solution is to download the latest SVN version 1.10.X and install it, and then follow the steps to do it again. If a warning message appears, simply click OK.
tip : On the SVN plug-in website, go to the details page where you want to install the plugin version, where the SVN plugin version matches the Eclipse version, and the SVN plugin website address: http://subclipse.tigris.org/ Servlets/projectprocess? Pageid=p4wyua,
If the prompt version is too low, you will need to find a higher version of the installation. The specific version can only slowly try to grope.
Subversion does not recognize TORTOISESVN checkout's project