WMR build step partially install a npm package if error

[KoharaKazuya]

Environments:

• macOS v11.1
• node v12.16.3
• npm v6.14.4

Reproduction steps:

$ npm init wmr my-demo
$ cd $_
$ rm -rf node_modules
$ npm install
$ npm run build # => error occurs (it looks to be the same problem #236)
$ ls node_modules/preact/src # => cannot find *.d.ts files
cjs.js            constants.js      diff              render.js
clone-element.js  create-context.js index.js          util.js
component.js      create-element.js options.js

preact must have published *.d.ts files, but cannot find them.
Sometimes the same steps install index.d.ts and no jsx.d.ts.

[developit]

Thanks for reporting this!