TNS Database Error Messages TNS-00135: Missing TNS error message file October 1, 2020 mpbod TNS-00135: Missing TNS error message file Cause: No error message file present. Action: Ensure that the Oracle environment is correctly set for your platform and that there is a message directory that contains the correct error message file. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)