Because no versions of hive_generator match >1.1.0 <2.0.0 and hive_generator 1.1.0 depends on analyzer ^1.0.0, hive_generator ^1.1.0 requires analyzer ^1.0.0.
And because json_serializable >=5.0.0 depends on analyzer ^2.0.0, hive_generator ^1.1.0 is incompatible with json_serializable >=5.0.0.
So, because rm_backend depends on both json_serializable ^5.0.0 and hive_generator ^1.1.0, version solving failed.
pub get failed (1; So, because rm_backend depends on both json_serializable ^5.0.0 and hive_generator ^1.1.0, version solving failed.)