Current vimeoplayer 0.1.8 is not supporting Flutter 2.2.0 and http ^0.13.1. While building getting following errors.
Because vimeoplayer 0.1.8 depends on http ^0.12.1 and no versions of vimeoplayer match >0.1.8 <0.2.0, vimeoplayer ^0.1.8 requires http ^0.12.1.
So, because alpha depends on both http ^0.13.1 and vimeoplayer ^0.1.8, version solving failed.
pub get failed (1; So, because alpha depends on both http ^0.13.1 and vimeoplayer ^0.1.8, version solving failed.)