visual studio doens't compile angular project anymore

Question

I have my project on git that it works fine. So this morning while I modify the project I have push some strange shortcut and my vs code doesn't compile anymore. Now in my vs the code appears in this way:

I don't have first this color brackets,but I compile the same and I obtain:

:8080/runtime.js:1          Failed to load resource: the server responded with a status of 404 ()
:8080/polyfills.js:1          Failed to load resource: the server responded with a status of 404 ()
:8080/main.js:1          Failed to load resource: the server responded with a status of 404 ()
styles.css:1          Failed to load resource: the server responded with a status of 404 ()
TitilliumWeb-Regular.ttf:1          Failed to load resource: the server responded with a status of 404 ()
styles.css:1          Failed to load resource: the server responded with a status of 404 ()

so I use "git reset --hard " and I replace the current code with the stable code in git and the programs doesn't compile. I disable all plugins and It doens't work. I think must be some shortcut in visual studio code because this morning I started the git version of my project and it woks fine. But now visual studio doent' compile anymore: