svn: E175002: Unable to connect to a repository at URL
I removed all the previous auth ssl server by the command:
rm ~/.subversion/auth/svn.ssl.server/*
and all worked again.
The culprit was Cisco AnyConnect, I uninstalled it and svn works
I had the same problem, I also had cisco anyconnect, but my solution was to change the URL to https and it seemed to work.
That is I edited
http://google-api-objectivec-client.googlecode.com/svn
to
https://google-api-objectivec-client.googlecode.com/svn
in the script file