Error with gulp-changed since update to 2

[adyz]

I've updated from "gulp-compass": "^2.0.3" to "gulp-compass": "^2.1.0" and now I get and error:

/Users/adrian/Desktop/app/node_modules/gulp-changed/index.js:31
            if (sourceFile.stat.mtime > targetStat.mtime) {
                               ^
TypeError: Cannot read property 'mtime' of null
    at /Users/adrian/Desktop/app/node_modules/gulp-changed/index.js:31:23
    at Object.oncomplete (fs.js:108:15)

My gulp task:

gulp.task('sass-desktop', function () {
    return gulp.src('scss/*.scss')
        .pipe(plumber({
            errorHandler: function (error) {
                console.log(error.message);
                this.emit('end');
            }}))
        .pipe(compass({
            config_file: 'config.rb',
            css: 'css',
            sass: 'scss',
            image: 'images',
            debug: false,
            require: ['susy', 'modular-scale']
        }))
        .on('error', function(error) {
            // Would like to catch the error here
            console.log(error);
            this.emit('end');
        })
        .pipe(autoprefixer({
            browsers: ['last 8 versions'],
            cascade: false
        }))
        .pipe(changed('css', {extension: '.css'}))
        .pipe(gulp.dest('css'))
});

Any ideas?

Any alternative for gulp-changed?