Because cloudbase_null_safety 1.1.3 depends on package_info_plus ^1.4.0 and no versions of cloudbase_null_safety match >1.1.3 <2.0.0, cloudbase_null_safety ^1.1.3 requires package_info_plus ^1.4.0.
So, because short_video depends on both package_info_plus ^4.0.2 and cloudbase_null_safety ^1.1.3, version solving failed.
Because cloudbase_null_safety 1.1.3 depends on package_info_plus ^1.4.0 and no versions of cloudbase_null_safety match >1.1.3 <2.0.0, cloudbase_null_safety ^1.1.3 requires package_info_plus ^1.4.0.
So, because short_video depends on both package_info_plus ^4.0.2 and cloudbase_null_safety ^1.1.3, version solving failed.