diff -r 07239de796bb -r e756a8c72c3d server/src/gulpfile.js
--- a/server/src/gulpfile.js	Tue Jul 11 09:49:26 2017 +0200
+++ b/server/src/gulpfile.js	Fri Sep 08 12:04:06 2017 +0200
@@ -3,6 +3,7 @@
 var del = require('del');
 var seq = require('run-sequence');
 var minimist = require('minimist');
+var util = require("gulp-util");
 
 var exec = require('child_process').execSync;
 
@@ -41,17 +42,17 @@
 });
 
 gulp.task('do-copy-to-build', function() {
-    del(['../../build/root/var/www/corpusdelaparole/corpus-back/**/*'], {force: true}, function(err, files) {
-        if(err) {
-            return;
-        }
+    del(['../../build/root/var/www/corpusdelaparole/corpus-back/**/*'], {force: true}).then(function(files) {
         gulp.src(['**/*','!vendor', '!vendor/**', '!node_modules', /*'!public/corpus-app', '!public/corpus-app/**',*/ '!node_modules/**', '!.env', '!.git*', '!bootstrap/cache/**'])
             .pipe(gulp.dest('../../build/root/var/www/corpusdelaparole/corpus-back/'))
+            .on("finish", function() {
+                util.log("corpus-back files copied");
+            });
     });
 });
 
 elixir(function(mix) {
-    mix.sass('app.scss', 'public/css/app.css', {includePaths: [paths['bootstrap']+'stylesheets/']})
+    mix.sass('app.scss', 'public/css/app.css', null, {includePaths: [paths['bootstrap']+'stylesheets/']})
         .scripts(['sparqlclient.js'], 'public/js/sparqlclient.js')
         .copy('resources/assets/sass/img', 'public/css/img')
         .copy(paths.bootstrap + 'fonts/bootstrap', 'public/fonts')