"Project target does not exist." on any command

**Describe the bug**
I am using Angular 9 RC0, so this may not be supported (yet), but essentially I can't get any of this plugin to work without the title error message appearing. Even the `azureLogout` command fails.

**To Reproduce**
Follow precisely the instructions on the readme for this plugin, but with Angular 9 up to and including step 4: `Deploy your project to Azure`.

The command fails with the following error:

`An unhandled exception occurred: Project target does not exist.`

**Expected behavior**
No error.

**Desktop (please complete the following information):**
- OS: Windows 10

**Additional context**
Add any other context about the problem here.