Because charts_flutter >=0.12.0 depends on intl >=0.15.2 <0.18.0 and every
version of flutter_localizations from sdk depends on intl 0.18.0,
charts_flutter >=0.12.0 is incompatible with flutter_localizations from sdk.
So, because sarwa depends on both flutter_localizations from sdk and
charts_flutter >=0.12.0, version solving failed.
Hi, the message is from another package, charts_flutter, you are reporting to flutter_charts. Google choose to use a name that is almost the same, to the first-on-pub flutter_charts.