Flutter When running app on Android a Manifest Merger failed error: different values is found

Question

I am receiving the following error when I try to test my app on Android:

Execution failed for task ':app:processDebugManifest'. Manifest merger failed : Overlay manifest:package attribute declared at AndroidManifest.xml:2:5-36 value=(com.carbery.qiGangApp) has a different value=(com.carbery.qiGangApp) declared in main manifest at AndroidManifest.xml:2:5-29 Suggestion: remove the overlay declaration at AndroidManifest.xml and place it in the build.gradle: flavorName { applicationId = "com.carbery.qiGangApp" }

A little history, I did use another app as a template for starting this one and so I changed the name and the applicationId. Originally when running the app for Android I received the same error as above, but with the old name. I then did a Find through all my files and changed the old name to the new one. The correct name is: com.carbery.qiGangApp

However I am still receiving the error, now even though the two values it refers to, look to be the same correct ones.

As I come from an Ios back ground, I am not so familiar with the Android set up. So any help with solving this would really be gratefully received.

Many thanks