He estado tratando de corregir este error durante dos días, parece que sucede en: wia.event.publish. La foto se tomó con éxito, pero la publicación de un evento parece ser un problema.

 'use strict'; const Wia = require('wia'); var wia = new Wia('my-device-secret-key'); var fs = require('fs'); var RaspiCam = require("raspicam"); // Setup the camera var camera = new RaspiCam({ mode: 'photo', output: __dirname + '/photo.jpg', encoding: 'jpg' }); // Listen for the "start" event triggered when the start method has been successfully initiated camera.on("start", function(){ console.log("Starting to take photo."); }); // Listen for the "read" event triggered when each new photo/video is saved camera.on("read", function(err, timestamp, filename){ console.log("New photo created.", timestamp, filename); // Publish the photo to Wia wia.event.publish({ name: 'photo', file: fs.createReadStream(__dirname + '/' + filename) }); }); // Take a photo camera.start();