def.values.join is not a function

[patrickdundas]

I'm trying to create a windows installer while in the directory of my distributable windows build, built with electron-packager. While in that directory, I run electron-installer-squirrel-windows ., and get this console output. I am getting the error def.values.join is not a function

PS C:\Users\pdundas\Desktop\Development\bulkrecent-desktop\release-builds\1.0.0\build-files\mustur-win32-ia32> electron-installer-squirrel-windows .

C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\node_modules\ampersand-state\ampersand-state.js:210
                    throw new TypeError('Property \'' + attr + '\' must be one of values: ' + def.values.join(', ') + '. Tried to set ' + newVal);
                                                                                                         ^

TypeError: def.values.join is not a function
    at child.set (C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\node_modules\ampersand-state\ampersand-state.js:210:106)
    at options.success (C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\node_modules\ampersand-model\ampersand-model.js:86:24)
    at Object.options.success (C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\lib\create-sync-errback.js:15:7)
    at C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\lib\create-sync-errback.js:22:15
    at C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\lib\model.js:173:7
    at child.<anonymous> (C:\Users\pdundas\AppData\Roaming\npm\node_modules\electron-installer-squirrel-windows\lib\model.js:151:9)
    at suppressedCallback (fs.js:200:5)
    at FSReqWrap.oncomplete (fs.js:141:20)