I am doing something terribly wrong when I navigate to a page and click back button whole app closes but the back button in top toolbar works fine. In my app.module.ts I have imported this module in imports section.
If you have .scss file and .module.ts file, then they are going into the same folder.
If you created by command line a page it goes by standard in a subfolder, for example bla; of pages folder. It contain bla.html, bla.ts, optional bla.scss, optional bla.module.ts
Maybe there is something going wrong with the component folder, which is created, when you add a component by command line.
Maybe it helps creating a new ionic project , create page and copy content in it.