Is this a bug report?

Yes

Can you also reproduce the problem with npm 4.x?

Yes. I first tried with5.6.0, then with4.2.0, then with6.2.0

Which terms did you search for in User Guide?

Initial build, Failed to compile

Environment

1. npm ls react-scripts-ts (if you haven’t ejected):react-scripts-ts@2.16.0
2. node -v:v8.10.0
3. npm -v:5.6.0
4. yarn --version (if you use Yarn):1.7.0
5. npm ls react-scripts-ts (if you haven’t ejected):react-scripts-ts@2.16.0 (again)

Then, specify:

1. Operating system:

• Antergos

• Kernel:x86_64 Linux 4.16.13-1-ARC

2. Browser and version (if relevant):
   Chrome Version 68.0.3440.15 (Official Build) dev (64-bit), but it's not relevant.

Steps to Reproduce

(Write your steps here:)

1. create-react-app project-name --scripts-version=react-scripts-ts
2. cd project-name
3. yarn start ornpm run start

Expected Behavior

It should compile the app.

Actual Behavior

(2248,13): Subsequent property declarations must have the same type.  Property 'a' must be of type 'DetailedHTMLProps<AnchorHTMLAttributes<HTMLAnchorElement>, HTMLAnchorElement>', but here has type 'DetailedHTMLProps<AnchorHTMLAttributes<HTMLAnchorElement>, HTMLAnchorElement>'.nchorElement>', but here has type 'DetailedHTMLProps<AnchorHTMLAttributes<HTMLAnchorElement>, HTMLAnchorElement>'.

Reproducible Demo