Archive Distribution Fails to Run on Mac OS 10.12 (Sierra)

Problem

For versions prior to 18.1, the classic archive distributions of Syncro SVN Client (.zip or .tar.gz) fail to run on Mac OS 10.12 (Sierra).

Solution

This happens because the archives get quarantined and Mac OS 10.12 (Sierra) treats quarantined apps differently than older versions and isolates them from their parent folder at launch. If Syncro SVN Client was already installed when you upgraded to Mac OS 10.12 (Sierra), there are no problems.

If Syncro SVN Client was not already installed, or you need to reinstall an older version (prior to version 18.1), the quarantine flag must be removed for the entire content of the Syncro SVN Client installation directory or the individual applications. To resolve this issue, follow these steps:

1. Open a Terminal window and change the directory to the folder where Syncro SVN Client is located.
2. Run the following command:

   xattr -dr com.apple.quarantine oxygen/

   where "oxygen" is the actual name of the Syncro SVN Client directory.

   If Syncro SVN Client is in a location that requires administrator privileges for write access, you need to run the command from an administrator account and prefix the command with sudo. You will then be prompted to enter your password.