Better error message for missing `gcp` property (#997)
Better error message for missing `gcp` property (#997)

* Better error message

Better error message when "gcp" property is missing in now.json

* Make sure gcpConfig is defined

* Replaced destructor

zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli