Having trouble getting emulator to work on Android Studio

Hello, many users have had this issue as a result of having capital letters in the package name. If you change your package name from Astro.funfacts to astro.funfacts, it should fix the issue.

To do this, right-click on your package and press Refactor then Rename. Then, enter the new name. Make sure that you have all boxes on the dialog checked. Else, you may get errors in your xml files. Then, press Preview and then OK.

If you still have errors, go to Project and then Clean. Then, select Clean all projects (Or if you have a lot of projects, just choose the one you're working on). After that, press OK.

If you still have errors after that, open up your AndroidManifest.xml file in the XML View and look for any errors (Sometimes refactoring the package name doesn't quite work well for XML files). Usually, you'll understand what's gone wrong and will be able to manually correct it. If you still have errors, post the contents of your AndroidManifest.xml file here and I'll take a look :)