I am getting same kind of error on windows 1o while running test automation test case.
Failed to fetch test sources from source control system. Internal details:
svn: E200030: READONLY
org.tmatesoft.svn.core.SVNException: svn: E200030: READONLY
org.tmatesoft.sqljet.core.SqlJetException: READONLY: error code is READONLY
I tried clear cache and reinstalling SVN but still not able to fetch test cases from SVN via SCTM even I have read/write access to SVN.
Can you please let me know if any reason/solution.