Unable to process native iOS files and frameworks from scoped packages

[Fatme]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.1.0
• Cross-platform modules: 6.1.x
• Android Runtime: 6.1.x
• iOS Runtime: 6.1.x
• Plugin(s):

Describe the bug
NativeScript CLI it is not able to process correctly scoped packages/plugins that have native iOS files or frameworks as the following error is thrown:

Nanaimo::Reader::ParseError - [!] Invalid character "@" in unquoted string

The error is thrown as invalid .pbxproject is generated.

To Reproduce

1. tns create myApp --js
2. git clone git@github.com:Fatme/scoped-package.git
3. cd myApp && npm i <path to cloned repo>/nativescript-test-1.0.0.tgz
4. tns run ios

Expected behavior
The application should be successfully installed on device