diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6a532cb..a648788 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,41 +1,25 @@
+# Use the latest 2.1 version of CircleCI pipeline process engine. See: https://circleci.com/docs/2.0/configuration-reference
 version: 2.1
-
-orbs:
-  # The python orb contains a set of prepackaged CircleCI configuration you can use repeatedly in your configuration files
-  # Orb commands and jobs help you with common scripting around a language/tool
-  # so you dont have to copy and paste it everywhere.
-  # See the orb documentation here: https://circleci.com/developer/orbs/orb/circleci/python
-  python: circleci/python@1.2
-
-workflows:
-  sample:  # This is the name of the workflow, feel free to change it to better match your workflow.
-    # Inside the workflow, you define the jobs you want to run. 
-    # For more details on extending your workflow, see the configuration docs: https://circleci.com/docs/2.0/configuration-reference/#workflows 
-    jobs:
-      - build-and-test
-
-
+# Use a package of configuration called an orb.
+defaults: &defaults
+    docker: 
+      - image: circleci/node:13.8.0
 jobs:
-  build-and-test:  # This is the name of the job, feel free to change it to better match what you're trying to do!
-    # These next lines defines a Docker executors: https://circleci.com/docs/2.0/executor-types/
-    # You can specify an image from Dockerhub or use one of the convenience images from CircleCI's Developer Hub
-    # A list of available CircleCI Docker convenience images are available here: https://circleci.com/developer/images/image/cimg/python
-    # The executor is the environment in which the steps below will be executed - below will use a python 3.9 container
-    # Change the version below to your required version of python
-    docker:
-      - image: cimg/python:3.8
-    # Checkout the code as the first step. This is a dedicated CircleCI step.
-    # The python orb's install-packages step will install the dependencies from a Pipfile via Pipenv by default.
-    # Here we're making sure we use just use the system-wide pip. By default it uses the project root's requirements.txt.
-    # Then run your tests!
-    # CircleCI will report the results back to your VCS provider.
-    steps:
-      - checkout
-      - python/install-packages:
-          pkg-manager: pip
-          # app-dir: ~/project/package-directory/  # If you're requirements.txt isn't in the root directory.
-          # pip-dependency-file: test-requirements.txt  # if you have a different name for your requirements file, maybe one that combines your runtime and test requirements.
+  illustrate_commands:
+    <<: *defaults
+    steps: 
+      - run: return 1
       - run:
-          name: Run tests
-          # This assumes pytest is installed via the install-package step above
-          command: pytest
+         echo  ${CIRCLE_WORKFLOW_if}
+  error_check:
+    <<: *defaults
+    steps:
+       - checkout
+       - run:
+           command: echo "Hello error"
+           when: on_fail
+workflows:
+   default:
+     jobs:
+     - illustrate_commands
+     -  error_check