Error on adding a new project folder

[seojake]

v2.3.0

BUG REPORT

I'm getting the following error when trying to add a new project folder.

---uncaughtException---
TypeError: Cannot read property 'lastIndexOf' of undefined
at /Applications/Koala.app/Contents/Resources/app.nw/app/scripts/projectSettings.js:133:27
at Array.map (<anonymous>)
at Object.exports.parseKoalaConfig (/Applications/Koala.app/Contents/Resources/app.nw/app/scripts/projectSettings.js:129:41)
at loadExistsProjectConfig (/Applications/Koala.app/Contents/Resources/app.nw/app/scripts/projectManager.js:214:32)
at createProject (/Applications/Koala.app/Contents/Resources/app.nw/app/scripts/projectManager.js:70:26)
at Object.exports.addProject (/

The last bit of the error message is cropped off, and doesn't display in the error log

I've uninstalled and reinstalled multiple times and the problem still occurs. It also wont allow me to remove old projects.