My Android Studio project supports starting my old project / application

Question

I had an Android Studio project that I created. The project was named App2-1. After I finished this project, I wanted to move on to the next project called App2-2, based on App2-1. I copied and pasted the directory containing my project "App2-1", and named the new directory "App2-2". Then I opened the directory using an open project in Android Studio. There are no errors. I made a whole bunch of changes and then I started the application and it continues to open my old application. Almost like he has a link to him or something like that. Ideas?

Things I tried:

• Restart Android Studio
• Invalid Caches / Restarts in AS
• Rebooting my emulator
• Removed my application from the emulator / Clean install
• Tried a physical device

I assume that my workflow for creating a new project based on an old project was wrong. Rate all the tips.

Answer 1

I would make a copy of the project in a new folder and in this copy I will delete the following:

• .iml file
• .gradle folder
• .idea folder
• create a folder

then open Android Studio and select "File> Import Project ..." and select the new settings.gradle file and click "Open"

You may have to check dependencies and rebuild, but hopefully this should be all right with AS.

Answer 2

For me, "Gradle -> Tasks -> others -> clean."

Answer 3

There may be new functionality. It worked for me:

File → Invalidate Caches / Restart → Invalidate and Restart