yarn && rebuild node-sass

@@ -158,7 +158,7 @@ class Build {
             sh.cd(self.codePath);
             sh.cd(self.codePath);
 
 
 
 
-            var child = sh.exec('npm i --production=false', {
+            var child = sh.exec('yarn --production=false && npm rebuild node-sass', {
                 silent: self.silent,
                 silent: self.silent,
                 async: true
                 async: true
             });
             });