📅  最后修改于: 2022-03-11 14:56:27.128000             🧑  作者: Mango
It is changed in updated version of angular i think.
To resolve this issue you need to downgrade the angular/material version
Try to update the angular material (@angular/material@7.3.2) of this version.
npm uninstall -g @angular/material
npm cache clean --force
npm install -g @angular/material@7