I have made some UI changes in notebook repo, as per the CONTRIBUTING.md, There are also end to end tests to cover higher level user interactions
cd ui-tests
# start a new Jupyter server in a terminal
jlpm start
# in a new terminal, run the tests
jlpm test
But I am getting below error while running jlpm start Usage Error: Couldn't find the node_modules state file - running an install might help (findPackageLocation)