How to delete session storage? Tabs Package dies


I somehow destroyed the state of my project, possibly related to having a tab open which showed the contents of a zip archive. Now whenever I try to open the directory in atom, the Tabs package can’t start (see stacktrace below).

How do I blow away the state on the project? I figure tabs will be able to start when whatever corrupted state it’s trying to deserialize is gone.

Failed to activate package named 'tabs' TypeError: undefined is not a function
  at tabs-tab.module.exports.TabView.handleEvents (/Applications/
  at tabs-tab.module.exports.TabView.initialize (/Applications/
  at TabBarView.module.exports.TabBarView.addTabForItem (/Applications/
  at TabBarView.module.exports.TabBarView.initialize (/Applications/
  at TabBarView.View (/Applications/
  at new TabBarView (/Applications/
  at /Applications/
  at PaneContainerView.module.exports.PaneContainerView.eachPaneView (/Applications/
  at WorkspaceView.module.exports.WorkspaceView.eachPaneView (/Applications/
  at Object.module.exports.activate (/Applications/
  at Package.module.exports.Package.activateNow (/Applications/
  at /Applications/
  at Package.module.exports.Package.measure (/Applications/
  at Package.module.exports.Package.activate (/Applications/
  at PackageManager.module.exports.PackageManager.activatePackage (/Applications/
  at PackageManager.module.exports.PackageManager.activatePackages (/Applications/
  at PackageManager.module.exports.PackageManager.activate (/Applications/
  at Atom.module.exports.Atom.startEditorWindow (/Applications/
  at Object.<anonymous> (/Applications/
  at Object.<anonymous> (/Applications/
  at Module._compile (module.js:455:26)
  at Object.Module._extensions..js (module.js:473:10)
  at Module.load (/Applications/
  at Function.Module._load (module.js:311:12)
  at Module.require (module.js:363:17)
  at require (module.js:379:17)
  at window.onload (file:///Applications/


Close all instances of Atom and then move or delete the ~/.atom/storage directory.