angular material issues

 in angular materilal when i am binding data to the grid view that data value become null show
and getting error without any data grid showing error later handle it and
in the code ngafterviewint made the data null show 
data not binding properly i commented code in gatein dms project(datasourcevas)

to day i have old project with version 7 so when i install in new system getting errors

so i check node version in the old system

then downgrade means uninstaled nodejs installed old system nodejs version

after npm i my code working fine

so npm i depends on nodejs version also.