Issue with yarn

Is it possible to remove the engine requirement on the package.json file?

I encountred an issue using yarn, throwing the following error
`error join-events@1.0.6: The engine "node" is incompatible with this module. Expected version "6.3".`

It seems that it's a common issue: cf
https://github.com/Azure/azure-sdk-for-node/issues/1935

Open package.json and inspect the engine requirement that Yarn rejects for Node 6.3. Check whether removing or adjusting that field resolves installation with Yarn, then verify the package still installs successfully without the engine error.

Written by the indexing model from the issue text.