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.

Issue này nêu việc nâng cấp từ NativeScript 4.0.1 lên 4.0.2 và báo cáo các lỗi cài đặt trên Android, nhưng không cung cấp tệp nguồn, bài kiểm thử, dự án tái hiện hoặc nhật ký chẩn đoán. Hãy bắt đầu bằng cách tái hiện quá trình nâng cấp trên Android và thu thập đầu ra cài đặt liên quan; công việc được xem là hoàn tất khi xác định được nguyên nhân của lỗi do chữ ký xung đột hoặc cùng tên và xác minh được hành vi nâng cấp.