We are still investigating the details, however, we received a report that Haste fails to launch if a older version of Xcode is installed in the Applications directory of your Mac.
How to fix
This issue can be resolved by doing one of the following:
- Updating Xcode to the latest version (Xcode 9.4 as of August 2018)
- Uninstalling Xcode
- Rename Xcode or move it outside of the Applications directory
NOTE: On older systems (i.e. macOS Sierra and OS X El-Capitan), the latest version of Xcode cannot be installed.
In that case, reload the current page in Safari and try again. In particular, please note that Safari App Extensions do not seem to work on pages you opened before the extension was enabled. Please reload them and try again.
To remove the Safari Extension, delete ALL instances of "Haste.app" (or "Haste-beta.app" for beta versions) files from your computer and restart Safari. (It took us a while to figure this out!)