Vue.js is one of the most popular front-end frameworks, but it also comes with its own set of challenges. Here are some common routing problems that might arise when working with Vue.js and how to fix them:

1. Route not found: This error message usually means that your app has been trying to access a route that doesn't exist. To fix this, you should check if the path in your <router-link> or this.$router.push() method is correct, and also double-check your Vue Router configuration file (usually named router/index.js).

2. Route parameters not working: If you're trying to pass data through a route parameter, but it's not being received correctly in the component's props, make sure that you have defined the route path with a colon (:) before the parameter name. For example: { path: '/user/:id', component: UserProfile }

3. Routes not rendering as expected: In some cases, even if your routes are configured correctly, they may not render the components you expect. This could be due to a typo in the component name or a missing import statement. You should double-check both of these areas and make sure that everything is spelled correctly and imported properly.

4. Nested routes not working: If you're trying to create nested routes, but they're not rendering as expected, it could be due to a mistake in your routing configuration or a problem with the Vue Router itself. Make sure that all your paths are properly nested and that there are no syntax errors in your route definitions.

5. Redirects not working: If you're trying to set up redirects from one route to another, but they're not being followed as expected, it could be due to a mistake in your routing configuration or a problem with the Vue Router itself. Make sure that all your redirects are properly defined and that there are no syntax errors in your route definitions.

6. Route guards not working: If you're trying to use route guards (like beforeEnter, beforeRouteEnter, etc.), but they're not being executed as expected, it could be due to a problem with the Vue Router itself or a mistake in your code. Make sure that all your route guards are properly implemented and that there are no syntax errors in your code.