Overview

The build gate began failing in the react-northstar project with type errors, and upon investigation @dzearing and @ecraig12345 found that a different version of typescript (3.9.x) was being used to build the package. @ecraig12345 submitted a PR to fix nohoist settings for yarn workspaces assuming that may have been the issue, but the break persisted. After trying several different fixes, I had the idea to add The 3.7.2 version of typescript to the package, and it built successfully. That was addressed in this PR - #14362.

Repro steps

As an FYI, only some people were having this repro, but not everyone - similarly, @ecraig12345's PR passed the build, while others have not.

• Drop TS as a dev dependency from React Northstar + others
• Do a fresh yarn install after clean
• run yarn buildto @fluentui/react-northstar
• (hopefully) See the error.

Environment Information

• Browser and OS versions: OS is macOS Catalina

Node Versions tried:

10.20.x
12.12.x
13.x.x

Priorities and help requested:

Are you willing to submit a PR to fix? (Yes, No)
PR noted above - this requires more investigation

Requested priority: (Blocking, High, Normal, Low)
I'll leave this to the team to decide, no longer blocking as we've merged a workaround.