type error in packages/scratch-gui/src/reducers/vm.ts(1,16)

[chbinghu]

I cloned the scratch-editor code and npm i, and then cd to the scratch-gui and run npm start, and there is an error.

ERROR in /home/changbinghu/projects/scratch-editor/packages/scratch-gui/src/reducers/vm.ts(1,16)
TS2307: Cannot find module '@scratch/scratch-vm' or its corresponding type declarations.

It is an typescript error, how to fix this erorr?