Android Question Rapid_Debug.apk: Failure (Solved)

[Shelby]

Starting to change an app I have (not yet registered) I copied and pasted my app into a new B4A container and after I run the AVD manager and start to run the new app, I get the following error.

B4A Version: 9.30
Java Version: 8
Parsing code.    (0.00s)
Building folders structure.    (0.03s)
Compiling code.    (0.03s)
Compiling layouts code.    (0.00s)
Organizing libraries.    (0.01s)
    (AndroidX SDK)
Generating R file.    (0.16s)
Compiling debugger engine code.    (0.89s)
Compiling generated Java code.    (1.00s)
Convert byte code - optimized dex.    (0.46s)
Packaging files.    (0.24s)
Copying libraries resources    (0.00s)
Signing package file (debug key).    (0.62s)
ZipAlign file.    (0.85s)
Installing file to device.    Error
adb: failed to install AreaWalls_RAPID_DEBUG.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]

I changed the manifest editor target version to read: 27, then 28 and still no success. Is there some other problem I don't see?
Thanks

 

[Shelby]

I now see that I haven't transferred my designer over to the experimental project. I'll try that while I await some merciful soul who might help me.

 

[KMatle]

INSTALL_FAILED_VERSION_DOWNGRADE

I assume you started a new project and the version was lower than the one installed. Android checks and prevents that (e.g. installed is V5 and you want to install V1).

 

[yfleury]

Just uninstall the app on your device and install the new one

Or
Change version in new app to the same version number or higher in your app

 

[Shelby]

Thanks, I'm not sure I understand but I'll try. I'm using the emulator (B4A). Oh!!! Yes I remember that. Great!
Thanks
I assume that the version # is in the manifest editor?

 

[yfleury]

I assume that the version # is in the manifest editor?

No
Check in Main activity look for #Region Project Attributes and for #VersionCode:

 

[Shelby]

Oh yes, it's been months since I had to change one of these.

Initially thinking that changing the version code worked was a mistake by me. I had to first find the highest version code that I had used before. After adding 1 to that number I finally had success.

Thanks again yfleury