version solving failed

[alg520]

Because flui >=0.9.0 depends on json_annotation ^3.0.1 and neat_periodic_task 2.0.0 depends on json_annotation ^4.0.0, flui >=0.9.0 is incompatible with neat_periodic_task 2.0.0.
So, because new_box depends on both neat_periodic_task 2.0.0 and flui 0.9.2, version solving failed.
pub get failed (1; So, because new_box depends on both neat_periodic_task 2.0.0 and flui 0.9.2, version solving failed.)