问题
I'm migrating one of my live applications from Native to Xamarin. I have successfully done that and now I'm trying to release the same on Google Play Store.
I have generated a release build for the same in Xamarin android. Following are the scenarios which will describe the issue I'm facing -
Fresh Install - As I have a release apk for my application, I'm able to install it on my device and it's working smoothly.
Update Scenario - As I have mentioned earlier that the application is already live which was developed on Native Android, I have installed the live version of the same and tried updating the app using the latest release build that I have generated from Xamarin. In this case I'm getting the issue. Attached a screenshot for the reference.
What I have tried so far to resolve the issue -
As there are multiple questions related to this issue, I have tried following things to get rid of this issue -
- Clear data and Clear Cache of Google Play Store application.
- Checked the Signing keys are same as before.
- Checked the package name is same as before.
- Removed the Google account and added again as per the suggestions.
I need to resolve this error soon, so I can't use the Fresh Install technique as an option.
回答1:
I am able to identify the issue and fortunate that it got resolved. Sharing it here so if anyone gets stuck for the same issue then they can refer this.
Identified Issue - The issue was quite silly as the version code wasn't getting updated from the UI of Android Manifest even if I was changing the values. That might be the glitch in Xamarin or Visual Studio (for Xamarin).
What I did to resolve this - I manually deleted the declaration of Version Code and other values which weren't changing from AndroidManifest.xml then from the UI section of the Manifest I upgraded the Version Code and build the solution for release. That's how things got resolved at my end.
Hope this helps. Thanks.
来源：https://stackoverflow.com/questions/54477591/how-to-resolve-cant-update-the-apperror-code-901-error