Unable to generate map tiles

[mfeuermann]

Hello

i have problem with command

tilemantle http://IP:8080/pluto/{z}/{x}/{y}/tile.png --extent=12.09,51.06,18.87,48.55 --zoom=8-10

/usr/local/lib/node_modules/tilemantle/node_modules/turf/node_modules/turf-merge/index.js:55
var merged = clone(polygons.features[0]),
^
TypeError: Cannot read property '0' of undefined
at Object.module.exports as merge
at determineGeometry (/usr/local/lib/node_modules/tilemantle/bin/tilemantle.js:128:18)
at /usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:610:21
at /usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:249:17
at iterate (/usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:149:13)
at /usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:160:25
at /usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:251:21
at /usr/local/lib/node_modules/tilemantle/node_modules/async/lib/async.js:615:34
at ReadStream. (/usr/local/lib/node_modules/tilemantle/bin/tilemantle.js:91:5)
at ReadStream.EventEmitter.emit (events.js:92:17)

Can you help me with this problem ?
Thank you
Marek

[brianreavis]

Can you gist the geometry you're passing to it?