We witnessed this issue also when we switch git branches.

To add: click on + sign and select Gradle-aware Make and then, one popup will appear, just leave the text field empty.

Make sure you have already done “Gradle-aware Make” on the Before launch section:.

We are facing this same problem when we updated our Android Studio 3.1 or higher and, clean and fast method to resolve this error, and here, this is the solution: Method 2: “Gradle-aware Make” on the Before launch section

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