Remove src/core before installing deps

Author: taylortom

lib/installHelpers.js

@@ -664,14 +664,19 @@ function installDependencies(opts, callback) {
     if(error) {
       return callback(error);
     }
-    execCommand('npm install --unsafe-perm=true --loglevel error --production', { cwd: cwd }, function(error) {
-    
-      hideSpinner();
+    fs.remove(path.join(cwd, 'src', 'core'), function(error) {
       if(error) {
         return callback(error);
       }
-      log('Node dependencies installed successfully.');
-      callback();
+      execCommand('npm install --unsafe-perm=true --loglevel error --production', { cwd }, function(error) {
+      
+        hideSpinner();
+        if(error) {
+          return callback(error);
+        }
+        log('Node dependencies installed successfully.');
+        callback();
+      });
     });
   });
 }