The 9.x train of ngxd/core uses typescript 3.7, which is incompatible with angular 8.x and earlier.
I'm not sure which setup was intended here, but one of two things should be fixed:
If the 9.x train was meant to be used for angular 7,8,9 the typescript version should be dropped back.
If the intention was that angular version would match the release version (ie Angular 8 runs with the 8.x release train), please add that to the readme somewhere as the instructions/header of compatibility would lead you to believe otherwise.
The 9.x train of ngxd/core uses typescript 3.7, which is incompatible with angular 8.x and earlier.
I'm not sure which setup was intended here, but one of two things should be fixed: If the 9.x train was meant to be used for angular 7,8,9 the typescript version should be dropped back. If the intention was that angular version would match the release version (ie Angular 8 runs with the 8.x release train), please add that to the readme somewhere as the instructions/header of compatibility would lead you to believe otherwise.