Can't upgrade android app to new version

Please, provide the details below:

Did you verify this is a real problem by searching the NativeScript Forum and the other open issues in this repo? Yes

Tell us about the problem

After upgrade new version of android app I can see certificate error or same name conflict during installation but I haven't added any certificate yet.

Please provide the following version numbers that your issue occurs with:

√ Getting NativeScript components versions information...
√ Component nativescript has 4.0.2 version and is up to date.
√ Component tns-core-modules has 4.0.1 version and is up to date.
√ Component tns-android has 4.0.1 version and is up to date.
√ Component tns-ios has 4.0.1 version and is up to date.

Did the error happen while the app was being constructed? (buildtime error)

Did the error happen while the app was executing? (runtime error)

Please tell us how to recreate the issue in as much detail as possible.

Consider using the playground to provide the code you have issues with.

After upgrading from NativeScript 4.0.1 to 4.0.2, I am facing this problem. I have an existing project & this morning I did an update. During installing in android I faced problem with this error message "conflicting app signatures". In Samsung "Same name app has already installed". Please give me suggestion. Thanks in advance.

La issue indica un aggiornamento da NativeScript 4.0.1 a 4.0.2 e segnala errori di installazione su Android, ma non fornisce alcun file sorgente, test, progetto di riproduzione o log diagnostico. Inizia riproducendo l’aggiornamento su Android e raccogliendo l’output di installazione pertinente; il lavoro è completato quando viene identificata la causa dell’errore di firma in conflitto o di stesso nome e viene verificato il comportamento dell’aggiornamento.