is too old (format 29) to work with client version '1.8.9 (r1591380)' (expects format 31).

同步 SVNStatusSubscriber 时报告了错误。1 中的 0 个资源已经同步。
同步 /FakeBird/src 时发生错误：Error getting status for resource F/FakeBird/src org.apache.subversion.javahl.ClientException: The working copy needs to be upgraded
svn: The working copy at 'E:\Workspaces\AdobeFlashBuilder4.6\FakeBird'
is too old (format 29) to work with client version '1.8.9 (r1591380)' (expects format 31). You need to upgrade the working copy first.


Error getting status for resource F/FakeBird/src org.apache.subversion.javahl.ClientException: The working copy needs to be upgraded
svn: The working copy at 'E:\Workspaces\AdobeFlashBuilder4.6\FakeBird'
is too old (format 29) to work with client version '1.8.9 (r1591380)' (expects format 31). You need to upgrade the working copy first.


org.apache.subversion.javahl.ClientException: The working copy needs to be upgraded
svn: The working copy at 'E:\Workspaces\AdobeFlashBuilder4.6\FakeBird'
is too old (format 29) to work with client version '1.8.9 (r1591380)' (expects format 31). You need to upgrade the working copy first.


org.apache.subversion.javahl.ClientException: The working copy needs to be upgraded
svn: The working copy at 'E:\Workspaces\AdobeFlashBuilder4.6\FakeBird'
is too old (format 29) to work with client version '1.8.9 (r1591380)' (expects format 31). You need to upgrade the working copy first.

解决：

小组-Upgrade 即可。