Currently, CompileAssetsCommand throws no exception in case of e.g. syntax error. That results in a successfully finished build. Due to that, site might be missing a manifest.json file that causes 500 error.

Steps to reproduce:
1. Add a syntax error to any CSS or JS file in your project.
2. Execute php bin/console ezplatform:encore:compile.

Result:
Command will return exit code 2 but not fail with an exception.