Angular7: Template Parse Errors: The Pipe 'titlecase' / 'slice' Could Not Be Found

I'm migrating my app from Angular 6 to Angular 7 After running ng update , and updating my packages , things goes well until i run: ng build --configuration=production it seems

Solution 1:

I had this exact same problem. With a little digging I found out it has something to do with having Ivy enabled in your TS config.

What I did to solve it is remove the following configuration from the tsconfig.json:

"angularCompilerOptions":{"enableIvy":true}