Edit 20/09/2016 The Package Control has now fixed and released the update with the following change log: Package Control Version 3.2 Release Notes This version of Package Control focuses on bug-fixes, with notable changes including: OS X TLS trust roots are exported using APIs to prevent the error message displayed to some El Capitan users … Read more
Had the same issue today. Reinstalled package control: Deleted Package Control folder inside the Sublime Text 3 > Packages folder went to https://sublime.wbond.net/installation and executed the manual installation instructions there …namely Click the Preferences > Browse Packages… menu Browse up a folder and then into the Installed Packages/ folder Download Package Control.sublime-package and copy it … Read more
The maintained version of SideBarEnhancements now only supports Sublime Text 3. A public beta version of ST3 is available for download, and I highly recommend upgrading if possible, unless you absolutely depend on some old ST2-only plugins, and there is no chance that they’ll be ported to ST3/Python 3.3. Many plugins now support both versions, … Read more
Take a look in your user Preferences.sublime-settings and remove the Package Control from the “ignored_packages” list if it is there. If you use a Linux based system, you may have to check permissions of /home/user/.config/sublime-text-3. Check if the directory is owned by your user. If not, change the owner user for that directory.