Resolving circle ci config issue.

.circleci/config.yml

@@ -1,13 +1,10 @@
 version: 2 # use CircleCI 2.0
 jobs: # a collection of steps
   build: # runs not using Workflows must have a `build` job as entry point
-    working_directory: ~/ # directory where steps will run
+    working_directory: /tmp # directory where steps will run
     docker: # run the steps with Docker
       - image: circleci/node:4.8.2 # ...with this image as the primary container; this is where all `steps` will run
     steps: # a collection of executable commands
-      - run:
-          name: file-permission
-          command: 'chown -R $USER:$USER ~/'
       - checkout # special step to check out source code to working directory
       - run:
           name: update-npm