Ignite: Upgrading from beta.2 to beta.7 fails

[orozcojair]

This afternoon I tried to upgrade from ignite beta.2 to beta.7 by running both methods

npm i -g [email protected] and ignite add ignite-ir-2016

after processes were complete, running ignite doctor would fail and present me with this

just for reference I then installed beta.6 and it is working properly.

My machine is a windows 8 with node 7.7 and npm 4.3, processor intel i7 with 8 cores.

Thank you

[skellock]

yarn should be optional. we broke something. as a work around for now, npm i -g yarn.

[orozcojair]

confirmed that installing yarn is a legitimate work-around

[aarjithn]

Tracking this in https://github.com/infinitered/ignite/issues/949