Environment variables gives error

[willybeans]

I am in section 4: setting up environment variables. I am getting this error:
`var env = proccess.env.NODE_ENV || 'developement';
^

ReferenceError: proccess is not defined
`

here is my full gulp file:

`var gulp = require('gulp'),
gutil = require('gulp-util'),
coffee = require('gulp-coffee'),
browserify = require('gulp-browserify'),
compass = require('gulp-compass'),
connect = require('gulp-connect'),
concat = require('gulp-concat');

var env,
coffeeSources,
jsSources,
sassSources,
htmlSources,
jsonSources,
outputDir;

var env = proccess.env.NODE_ENV || 'developement';

if (env === 'development'){
outputDir = 'builds/development/';
} else {
outputDir = 'builds/production/';
}

coffeeSources = ['components/coffee/tagline.coffee'];
jsSources = [
'components/scripts/rclick.js',
'components/scripts/pixgrid.js',
'components/scripts/tagline.js',
'components/scripts/template.js'
];
sassSources = ['components/sass/style.scss'];
htmlSources = [outputDir + '.html'];
jsonSources = [outputDir + '/js/.json']

gulp.task('coffee',function(){
gulp.src(coffeeSources)
.pipe(coffee({bare: true})
.on('error', gutil.log))
.pipe(gulp.dest('components/scripts'))
});

gulp.task('js', function(){
gulp.src(jsSources)
.pipe(concat('script.js'))
.pipe(browserify())
.pipe(gulp.dest(outputDir + 'js'))
.pipe(connect.reload())
});

gulp.task('compass', function(){
gulp.src(sassSources)
.pipe(compass({
sass: 'components/sass',
image: outputDir+'images',
style: 'expanded'
}))
.on('error', gutil.log)
.pipe(gulp.dest(outputDir+'css'))
.pipe(connect.reload())
});

gulp.task('watch', function(){
gulp.watch(coffeeSources, ['coffee']);
gulp.watch(jsSources, ['js']);
gulp.watch('components/sass/*.scss', ['compass']);
gulp.watch(htmlSources, ['html']);
gulp.watch(jsonSources, ['json']);
});

gulp.task('connect', function(){
connect.server({
root: outputDir,
livereload: true
});
});

gulp.task('html',function(){
gulp.src(htmlSources)
.pipe(connect.reload())
});

gulp.task('json',function(){
gulp.src(jsonSources)
.pipe(connect.reload())
});

gulp.task('default', ['html','json','coffee','js','compass','connect', 'watch']);
`