Hi @axilla
If you are using ASP.NET Core & Angular version, could you remove node_modules folder and install NPM packages using yarn ? It seems like a new version of Angular (probably 8.1) is installed as a NPM dependency.
this made it work for me
product version 7.1.0 .net core abp 4.8.1
We have the same issue. Downgrading to 8.0.0 didn't help us.
I downgraded angular to 8.0.0 but still not working