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What version code comes after e.g v 1.0.9 for an android app

Im a beginner in flutter development and i'm not very familiar with versioning of an app. i believe from version 1.0.9 it's supposed to be 1.0.10 but everytime i try to upload my new release i get an error that i already have a release with version code 1. Whats could be the issue?

v 1.1.0 comes after 1.0.9. Also make sure to change the version code.
if the current version is 1.0.9+10 , then you need to change it to 1.1.0+11
where +10 and +11 is the version code.
Make these changes in the pubspec.yaml file. For example:
version: 1.1.0+11

Make sure the Version code of the app is updated before publishing the app

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I am trying to release a new version of my Android App.
I can upload the APK file but after I click the "Review" Button I am getting below error.
Review summary
Errors
Resolve these errors before starting the rollout of this release.
You can't rollout this release because it doesn't allow any existing users to upgrade to the newly added APKs.
Please note that this app was developed using CORDOVA
The app version details are as below image. The only difference from the previous and this new version is the Target SDK is changed from 24 to 26
Can someone please give some idea to fix this issue. Thanks for your help

I contacted the Google support and they replied within 24 hours.
The issue is the android:versionCode in the AndroidManifest.xml is lower than my previous release. After I fixed the issue I was able to release my app without any issue.
How I fixed the issue
I changed the android-versionCode to a higher value in <manifest tag in the config.xml file so AndroidManifest.xml has the higher value.
Full reply from Google
Hi,
Thanks for contacting Google Play Developer Support.
You're seeing that error message because your new APK has a lower version code than the previous APK. Newer APKs must always have a higher version code than the previous version, or the Play Store won't know that the new APK is an update. Please change your new APK's version code to be at least 206020.
Regards,
Google Play Developer Support

If your Old APK version is a higher number than your New APK version then you get this error.
It is not the version name that matters, that can actually be any string, it is only the version code which must always be higher than a previous version.
https://developer.android.com/studio/publish/versioning
To fix for Flutter
In pubspec.yaml it is the version line, and the number after the + sign is the one that must be higher than the Old Version Code shown in the Google Play Console screen as the "1 app bundle deactivated".
That would be 50 if this was your version line :
version: 1.0.0+50

I faced same issue, interestingly the versioncode(120001) of new release (12.0.0) was less than the versioncode(1104058) previous release (11.4.5)
I resolved this issue following this link Setting Android version code in Ionic 2

Update both versionCode and versionName.
minSdkVesion 16
targetSdkVesion 26
versionCode 2
versionName 1.1

In your config.xml file's <widget> element, add/increment the android-versionCode attribute by one:
<widget id="com.example.foo" version="1.0.1" android-versionCode="10001" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
After that, running a cordova clean android and cordova build android --release gave me an .apk that the Google Play Console accepted.

have you upgraded your versionCode from previous versionCode?
minSdkVesion 16
targetSdkVesion 26
versionCode 1 //you need to upgrade it from previous one
versionName 1.0

If you are Monaca Cloud IDE for building and you are facing this error You cannot make this version available because it does not allow existing users to upgrade to new APKs that have been added.
So here what is the problem, When you try to build APK then it generates a random number,
So make sure your new update version code is greater then this 10505
You can set in Monaca Cloud IDE version code

In the root of your project will be a config.xml file. It contains a widget node that has an attribute of version. 1.17.01 in Example: <widget id="com.myapp.mobile" version="1.17.01" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
During a cordova prepare operation, this config.xml file is merged into the manifest file for your platform (e.g. platforms\android\app\src\main\AndroidManifest.xml for Android). The merged manifest file will contain both a version code and version string generated from the version listed in the config.xml. Ex: <manifest android:hardwareAccelerated="true" android:versionCode="11701" android:versionName="1.17.01" package="com.myapp.mobile" xmlns:android="http://schemas.android.com/apk/res/android">
This version code 11701 will be what is listed on the play console.
To automatically set this version greater, you can add to your gradle.properties file a variable setting cdvVersionCodeForceAbiDigit=true which will automatically multiply the version by 10. Note this logic is laid out in the build.gradle file at the root of your platform app folder. There is other logic toggled with the cdvBuildMultipleApks variable to set different values based on product flavor (arm, x86, etc). But I think the recommended approach today is to upload a "bundle" and let Google automatically generate the separate apks for various device configurations.

Google Api Error when uploading with Supply

Trying to upload the Cordova build using Fastlane Supply fails with this error:
Google Api Error: multiApkShadowedActiveApk: Version 10125 of this app
can not be downloaded by any devices as they will all receive APKs
with higher version codes.
It might've started happening after I updated to cordova-android 6.0.0. Can't be sure tho.
One thing I might add is that I don't specify that 10125 style of version anywhere in the project. I only update the version attribute inside widget tag to X.X.X versioning style.

It turns out, cordova-android changed how it calculates the versionCode out of the version value inside the widget tag.
The solution is to manually specify versionCode:
<widget version="1.1.26" android-versionCode="101260" ... >

how to installed apk without uninstalling the current apk of the same App

I used to work with Android studio 1.4. yesterday I downloaded the newest version of android Studio 2.1.2 and it did not work well for me, so i reverted to Android studio 1.4.
the problem is, when i tried to run my App, I received a message telling me, "that the apk is already installed on the phone and to reinstall it i have to uninstall the version that is already on the phone".
Actually, I can not uninstall the apk version that is currently on the phone because it contains a huge database, and if i uninstalled it, then the databse content will be lost and i have to do it from the beginning
is there any other solution to run the App "apk" without uninstalling it
i am getting this message:

The easiest and the fastest way is to change application package name.

An appropriate way to do what you want would be to use ProductFlavours.
You start by adding the following to your app's build.gradle:
android {
productFlavors {
dev {
applicationId "com.yourapp.dev" //one in development mode
}
prod {
applicationId "com.yourapp" //the package name for your released app
}
}
}
You can add parameters different for the dev and production apk(s) as BuildConfig fields.
Do study more about it, will be able to implement it in the way you want. You can start with
Mastering product flavours on android

Just change the applicaitonId property in the app module's build.gradle.

Change version code and version name in build.gradle.
Hope this will help you.

1-First of All Please Change Your Current Application Package name
2-Build The Application
3-We can't use same package name in android
4-Work Will File after completion this steps.

Just change the applicaiton's Id property which is located in the app module's build.gradle.

Upload failed You need to use a different version code for your APK because you already have one with version code 1, but it isn't

So, I have read a lot of questions here, and I have found out that I shold change my android manifest. So now my android:versionCode = "2"
But still, when I try to upload the updated apk, I get the error in the title.
I am making a game in unity, using the plugin for Google mobile ads.

Your Version Code gets probably overridden by the one in the PlayerSettings

You have to change the version code in the build.gradle file as well :-)