用SVN加載源碼時報錯

通過SVN加載源碼時報如下錯誤信息：

1、This solution was previously downloaded on this computer and a local copy already exists. You can open the local copy of this solution, or you can discard all local files and replace them with the latest server version from source control.

Which files would you like to open?

2、
This project (QpTrade.sln) cannot be opened from source control because it was created by a version of Microsoft Visual Studio that is incompatible with this one.

If this is the case, you may be able to open it from source control using that version of Microsoft Visual Studio, and then use Microsoft Visual Studio to open the local copy.

如何解決呢？