pxt serve --cloud failed

[adjian]

Hi,
My system was ubuntu20.04, and I follow guide https://learn.adafruit.com/installing-makecode-for-adafruit?view=all to install makecode-adafruit.
Describe the bug
finally, after I ran command "pxt serve --cloud", I got a error as following:
[run] cd sim; node ../node_modules/typescript/bin/tsc
dalboard.ts:140:54 - error TS2554: Expected 1 arguments, but got 0.

140 this.builtinParts["ir"] = this.irState = new InfraredState();
~~~~~~~~~~~~~~~~~~~

../built/common-sim.d.ts:752:21
752 constructor(board: BaseBoard);
~~~~~~~~~~~~~~~~
An argument for 'board' was not provided.

Found 1 error.

---

*** Build failed: target build failed: Exit code: 2 from cd sim; node ../node_modules/typescript/bin/tsc
Error: Exit code: 2 from cd sim; node ../node_modules/typescript/bin/tsc
at ChildProcess.ch.on (/home/jun/makecode-adafruit/pxt/built/nodeutil.js:78:24)
at ChildProcess.emit (events.js:198:13)
at maybeClose (internal/child_process.js:982:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)

---

To Reproduce
Steps to reproduce the behavior:

1. follow the install guide: https://learn.adafruit.com/installing-makecode-for-adafruit?view=all

Screenshots

Desktop (please complete the following information):

• OS: ubuntu20.04
• Browser firefox
• Version 88