Because fluttercontactpicker >=5.0.0 depends on contact_picker_web ^5.0.0 which depends on js ^0.7.1,
fluttercontactpicker >=5.0.0 requires js ^0.7.1.
And because flutter_google_places_sdk >=0.3.9 depends on flutter_google_places_sdk_web ^0.1.7 which
depends on js ^0.6.7, fluttercontactpicker >=5.0.0 is incompatible with flutter_google_places_sdk
=0.3.9.
So, because unka depends on both flutter_google_places_sdk ^0.3.9 and fluttercontactpicker ^5.0.0,
version solving failed.
Because fluttercontactpicker >=5.0.0 depends on contact_picker_web ^5.0.0 which depends on js ^0.7.1, fluttercontactpicker >=5.0.0 requires js ^0.7.1. And because flutter_google_places_sdk >=0.3.9 depends on flutter_google_places_sdk_web ^0.1.7 which depends on js ^0.6.7, fluttercontactpicker >=5.0.0 is incompatible with flutter_google_places_sdk