Update config.yml

.circleci/config.yml

@@ -24,6 +24,7 @@ jobs:
 
     steps:
       - checkout
+      - run: npm install
       - run: npm run lint && npm run test && npm run downloadsolc && npm run make-mock-compiler && npm run setupremix && npm run build
       - run: ./ci/browser_tests.sh
       - run: if [ $CIRCLE_BRANCH = 'master' ]; then ./ci/deploy_from_travis_master.sh; fi
@@ -34,4 +35,3 @@ workflows:
   build_all:
     jobs:
       - build
-