When I test using grunt serve:dist I get multiple 404 errors, it seems to be everything between the inject.js and .css

GET /app/main/main.css 404 15ms
GET /app/project/project.css 404 7ms
GET /app/project/projectdetail.css 404 2ms
GET /components/modal/modal.css 404 2ms
GET /app/login/login.js 404 32ms
GET /app/main/main.js 404 33ms
GET /app/project/project.controller.js 404 33ms
GET /app/project/project.js 404 5ms
GET /app/project/projectdetail.controller.js 404 10ms
GET /app/project/projectdetailedit.controller.js 404 9ms
GET /app/project/projectnew.controller.js 404 5ms
GET /components/modal/modal.service.js 404 5ms
GET /components/navbar/navbar.controller.js 404 7ms
GET /api/users/current 401 2ms - 42b
GET /api/users/current 401 1ms - 42b
GET /app/main/main.css 404 5ms
GET /app/project/project.css 404 6ms
GET /app/project/projectdetail.css 404 6ms
GET /components/modal/modal.css 404 5ms
GET /app/main/main.css 404 3ms
GET /app/project/project.css 404 3ms
GET /app/project/projectdetail.css 404 2ms
GET /components/modal/modal.css 404 1ms
GET /app/login/login.js 404 8ms
GET /app/main/main.js 404 13ms
GET /app/project/project.controller.js 404 7ms
GET /app/project/project.js 404 7ms
GET /app/project/projectdetail.controller.js 404 6ms
GET /app/project/projectdetailedit.controller.js 404 6ms
GET /app/project/projectnew.controller.js 404 3ms
GET /components/modal/modal.service.js 404 5ms
GET /components/navbar/navbar.controller.js 404 2ms
GET /api/users/current 401 1ms - 42b
GET /api/users/current 401 1ms - 42b

Same thing when I deploy to Heroku, I've already ran grunt build.