title: expected workspace package to exist for \"sane\""
body: <p>I got the project from the github and want to install the node_modules by using &quot;yarn install&quot;.</p>
  <p>When I enter the yarn install, the terminal came out the result as shown as the picture. As a reference, my node version is 12.18.0, yarn version 1.22.4, and npm version 6.14.5. May I know is the version not compatible or somethings else problem?</p>
  <p><a href="https://i.stack.imgur.com/5JCHG.png" rel="noreferrer"><img src="https://i.stack.imgur.com/5JCHG.png" alt="enter image description here" /></a></p>