yarn add package not found

[kdong007]

yarn v1.12.3
node v8.10.0
macOS v10.13.5

yarn add event-stream gives me

error https://registry.yarnpkg.com/event-stream/-/event-stream-3.3.6.tgz: Extracting tar content of undefined failed, the file appears to be corrupt: "Unexpected end of data"

I opened up this URL i browser, it says

{
"error": "Not found"
}

[rally25rs]

There is no event-stream version 3.3.6 (it was probably unpublished)

https://www.npmjs.com/package/event-stream (and switch to "Versions" tab)

You could yarn upgrade [email protected] to move back to the latest 3.x version, or yarn upgrade event-stream --latest to upgrade to the latest major version.