svn Error validating server certificate

Fix (for Unix):

svn.ssl.server is on ~/.subversion/auth

• Change Owner recursively on ~/.subversion/auth or delete:
  delete – ~/.subversion/auth/svn.ssl.server
  owner – chown -R $USER ~/.subversion/auth

• Open the command prompt and run svn list https:...

• Accept certficate permanently by entering p.

Have Fun !