Error: tree.branch is not a function

[plambhsa]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Versions.

@angular/cli: 1.4.9
node: 8.4.0
os: darwin x64

Repro steps.

ng new project-name

The log given by the failure.

Error: tree.branch is not a function
tree.branch is not a function

Desired functionality.

Obviously, I would like it to create the new project

Mention any other details that might be useful.

I had this issue in the middle of last week, but restarting my terminal and starting a new session seemed to fix it. But it's not working again. I've uninstalled the CLI globally and reinstalled it, tried different versions, etc, and nothing seems to work. CLI functionality works in existing projects (like generating a module or component) but not when creating a new project. I have no idea where to go from here. I've looked at all the similar issues that I could find and none of the potential solutions have worked.

[Splaktar]

This happens when it can't find @angular-devkit/schematics which seems to happen in some strange cases, often related to environment and configuration.

[Splaktar]

This is a duplicate of #8167. Please search before posting a new issue.

[filipesilva]

Closing as duplicate of #8167, thanks @Splaktar 👍

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