AppData\Roaming\Subversion\config:109: Option expected in windows-8 64 bit

Currently I'm using windows-8 64 bit machine. I installed VisualSVN server 2.5.2 in another machine(windows-7 32 bit), created a repository(MyRepos) and enabled subversion authentication. But I'm not able to connect the repository by using my windows 8 64 bit machine. It showing following error message while trying to get "svn list cmd",     svn-win32-1.7.5\bin>svn.exe list https://10.3.6.98/svn/MyRepos   svn: C:\Users\admin\AppData\Roaming\Subversion\config:109: Option expected.  But there is no such subversion folder inside the Roaming folder. Roaming folder is empty. I'm able to connect this repository from another window 7 32 bit machine.    I also installed VisualSVN server in my windows 8 64 bit machine itself and created a repository and enabled the subversion authentication, but not able to connect from my machine itself.    Thanks in advance,