Can't bind to 'matMenuTriggerFor' since it isn't a known property of 'button'

Question

I\'m getting following error when I try to test an angular component:

Error while running jest tests:

Can\'t bind to \'matMenuTriggerFor\' since it i         


        

Answer 1

Random but in case someone was searching like me: I was importing a custom angular material library and building the consuming library before building the material library. when I built the material library first then the consuming library was about to see the MatMenuModule and errors went away.

I changed

"library:build": "npm run ng7-common:build" && npm run ng8-material:build

to:

"library:build": " npm run ng8-material:build && npm run ng7-common:build"