Preflight Checklist
What package is this bug report for?
rrweb
Version
master branch
Expected Behavior
Run "yarn dev" successfully
Actual Behavior
After downloading the mater branch, when I run the script "yarn dev", it fails.
The prompt message is as follows:

Steps to Reproduce
1.downloading the mater branch
2.Run "yarn install" in the root
3.Run "yarn dev" in the root
Testcase Gist URL
No response
Additional Information
No response