##In Brief
You may need to configure a proxy server if you're having trouble cloning
or fetching from a remote repository or getting an error
like unable to access '...' Couldn't resolve host '...'.
Consider something like:
-com.apple.CoreData.SQLDebug 1-3 - print all SQL queries called by Core Data
-com.apple.CoreData.Logging.stderr 1-3 - needed alongside with the SQLDebug from iOS 10+ because of new logging system, more on that in changelog-com.apple.CoreData.SyntaxtColoredLogging YES - probably syntax colored logging (not tried)-com.apple.CoreData.SQLiteDebugSynchronous 1 - preference controls some aspects of the SQLite store. See the "Configuring a SQLite Store's Save Behavior" section of the Core Data Programming Guide for details-com.apple.CoreData.SQLiteIntegrityCheck 1 - the SQLite store does extra integrity checking-com.apple.CoreData.MigrationDebug 1 - Core Data will log information about exceptional cases as it migrates data-com.apple.CoreData.ThreadingDebug - preference enables assertions to enforce Core Data's multi-threading policy. It is a number, where incre