Strange error

[dotmilk]

path.js:554
throw new TypeError('ext must be a string');
^
TypeError: ext must be a string
at Object.posix.basename (path.js:554:11)
at Array.map (native)
at Through2.onend (/usr/local/lib/node_modules/wicked/lib/wikify.js:78:8)
at emitNone (events.js:72:20)
at Through2.emit (events.js:163:7)
at endReadableNT (_stream_readable.js:890:12)
at process._tickCallback (node.js:343:24)

[dropofwill]

Same issue for me.