Error: no value assigned to required variable a. Assignment can be done through the "--var" flag or by setting the BUNDLE_VAR_a environment variable

Name: empty${var.a}
Target: default
Workspace:
  User: tester@databricks.com
  Path: /Workspace/Users/tester@databricks.com/.bundle/empty${var.a}/default

Found 1 error

Exit code: 1