Feedback Everything wrong with building to device!!

This is 2018.4 LTS, maybe it has improved since? Let me know

So trying to build an app to an android device seems to be really painful at times
- first it always seems to rebuild the binary each time even if you made no changes which takes ages...
- only after that long wait does it tell you there is some issue so you have to repeat the whole slow build...
- errors are often a bit hidden in the console or log and some make no sense, e.g:

Code (CSharp):

1. CommandInvokationFailure: Unable to install APK to device. Please make sure the Android SDK is installed and is properly configured in the Editor. See the Console for more details.
2. C:\Users\user\AppData\Local\Android\sdk\platform-tools\adb.exe -s "XXXXX" install -r "D:\[folder]\[appname].aab"
3.  
4. stderr[
5. adb.exe: filename doesn't end .apk or .apex: D:\[folder]\[appname].aab
6. ]

Now I unticked build to .aab so why is it mentioning this?? Is it still trying to build to old file name including extension?! (Edit: this is exactly what it does - it should force the correct extension)

This could definitely be faster and less time wasting for the developer and just a nicer experience by checking things up front and not doing so much rebuilding each time and popping up a message with the key issue & what to do, rather than putting an error in the console among all other messages.