AttributeError: 'ProjectPlotter' object has no attribute 'mapvector'

Created by: sourabhmet

I am running same code but i am getting this error AttributeError: 'ProjectPlotter' object has no attribute 'mapvector'

~/2019_data$ psyplot -aV

psy_maps.plugin: requirements: cartopy: 0.17.0 version: 1.2.0 psy_simple.plugin: version: 1.2.0 psyplot: requirements: matplotlib: 3.1.1 numpy: 1.17.2 pandas: 0.25.1 python: 3.7.3 (default, Mar 27 2019, 22:11:17) [GCC 7.3.0] xarray: 0.13.0 version: 1.2.1