diff --git a/lib/core/src/lib/app-config/app-config.service.ts b/lib/core/src/lib/app-config/app-config.service.ts
index 806da3f2c1..b3e3112448 100644
--- a/lib/core/src/lib/app-config/app-config.service.ts
+++ b/lib/core/src/lib/app-config/app-config.service.ts
@@ -197,6 +197,8 @@ export class AppConfigService {
                         this.onDataLoaded(data);
                     },
                     () => {
+                        // eslint-disable-next-line no-console
+                        console.error('app.config.json contains validation errors');
                         resolve(this.config);
                     }
                 );