TypeError: Cannot read property 'flags' of undefined

Question

After cloning a repo, npm install && ionic cordova build android --prod shows me following error.

TypeError: Cannot read pr         


        

Answer 1

Removing @angular/cli should work for you

if not, change Typescript version to ~2.6.2.

@angular/cli 1.7.3 works with Typescript ~2.6.2 only.