Android Question "App not installed" why ?

[amorosik]

I am using B4A ver 11.80
Smartphone with Android 11
B4A-Bridge 2.65

When I try to transfer, after compilation, the code on the phone, the installation request is presented, which I confirm
After a few seconds an "App not Installed" appears.
I state that:
- several apps have already been installed on this phone
- there are no problems of lack of memory on which to install the app
- on a Samsung always with Android 11 the same app is installed and started correctly running
- no information useful to understand the problem appears on the log window of the B4A ide

The question is: how to understand why the app is not installed?

AddManifestText(
<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="30"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
CreateResourceFromFile(Macro, Themes.LightTheme)
'End of default text.
CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)

AddApplicationText(
<uses-library
      android:name="org.apache.http.legacy"
      android:required="false" />

<meta-data
  android:name="com.google.android.geo.API_KEY"
  android:value="api_google_key"/>
)

AddPermission("android.permission.FOREGROUND_SERVICE")
AddPermission("android.permission.ACCESS_FINE_LOCATION")
AddPermission("android.permission.ACCESS_COARSE_LOCATION")
SetServiceAttribute(Tracker, android:foregroundServiceType, "location")

 

[JohnC]

Try deleting the existing copy of the app on the phone and then see if it will now install.

 

[aeric]

I think this normally happen when you use a different Private Sign Key to compile the new version which conflict with the installed version.

 

[amorosik]

Try deleting the existing copy of the app on the phone and then see if it will now install.

There is no one 'existing copy' of the app
This app has never been installed

 

[amorosik]

I think this normally happen when you use a different Private Sign Key to compile the new version which conflict with the installed version.

On the phone there is no one 'installed version' of this app

 

[aeric]

Does it conflict with another app which has the same package name?

 

[Magma]

...if copy apk and run it.. the same with bridge?

 

[klaus]

What is the #ApplicationLabel in the IDE ?
What is the Package Name in the Build Configuration ?

 

[amorosik]

Does it conflict with another app which has the same package name?

Yes yes yeeeeesssss
Changed from b4a.example to other name, now compile, install and execute correctly
Many tanks

 

[Magma]

Yes yes yeeeeesssss
Changed from b4a.example to other name, now compile, install and execute correctly
Many tanks

Hope... for no tank...

 

[amorosik]

...if copy apk and run it.. the same with bridge?

If i load the apk via web browser to phone, the installation start correctly, but "App Not Instaled" is showed
It was the package name, changed from b4a.example to peppe.b4a.example now installation and app execution works fine

 

[amorosik]

What is the #ApplicationLabel in the IDE ?
What is the Package Name in the Build Configuration ?

It was PEPPE
Package name was B4A.EXAMPLE
Changed package name all works fine

 

[agraham]

The usual reason for this is that an installed app with the same package name has a higher version number than the one you are trying to install. The solution is to uninstall the existing app before installing the new one.

 

[amorosik]

The usual reason for this is that an installed app with the same package name has a higher version number than the one you are trying to install. The solution is to uninstall the existing app before installing the new one.

Ah, very interesting information
When there is time, i try the same app with original package name B4A.EXAMPLE and Version Number very high
Your 'Version Number' is #VersionCode on app ?

 

[agraham]

Your 'Version Number' is #VersionCode on app

Yes

 

[amorosik]

I just tried Package Name B4A.EXAMPLE (as originally)
#VersionCode: 1000

But the same 'App Not Installed' is returned

 

[agraham]

The usual reason for this

Not the only one. I've no idea if that's not the reason for you - but it's the only one I've ever encountered.

 

[Magma]

I just tried Package Name B4A.EXAMPLE (as originally)
#VersionCode: 1000

But the same 'App Not Installed' is returned

It will be better find this B4A.EXAMPLE and uninstall.. then reboot device... and install your new app...
or just change the name of new app...

Classic Reboot after uninstall (because may be there is a service running or something crashed)

Sometimes... apps have services... services need to destroyed/cancelled... to leave you update them...