My React Native app has 3 versions: App1, App2, App3. Each of these has a dev and prod version.

I've set these up in android/app/build.gradle as follows:

```
flavorDimensions "client", "backend"
    productFlavors {
        app1 {
            applicationId="com.app1name"
            dimension "client"
        }
        app2 {
            applicationId="com.app2name"
            dimension "client"
        }
        app3 {
            applicationId="com.app3name"
            dimension "client"
        }
        dev {
            dimension "backend"
        }
        prod {
            dimension "backend"
        }
    }
}

```

I've then set up android/app/src folders like this:

```
src
-- main
   -- assets
   -- java
      -- com
         -- app1name
            MainActivity.java
            MainApplication.java  
    -- res
    AndroidManifest.xml

```

But I'm not sure where to put the other app folders, and whatever I try doesn't seem to work. I've tried:

```
src
-- app2name
   -- assets
   -- java
      -- com
         MainActivity.java
         MainApplication.java  
    -- res
    AndroidManifest.xml

```

(and the same for app3)

and I've tried:

```
src
-- main
   -- assets
   -- java
      -- com
         -- app2name
            -- assets
            -- java
            -- com
               MainActivity.java
               MainApplication.java  
            -- res
            AndroidManifest.xml  
    -- res
    AndroidManifest.xml

```

I've made sure that each AndroidManifest.xml/MainActivity.java/MainApplication.java has the correct package name at the top.

However, I get the following error when I try to run app1name (it builds and installs ok):

```
Starting: Intent { cmp=com.app2name/.MainActivity }
Error type 3
Error: Activity class {com.app2name/com.app2name.MainActivity} does not exist.

```

So it looks as though it's trying to start app1, but for some reason is also looking for the main activity in app2, and I can't see why it's doing that.

What am I doing wrong?