Uploaded APK File in Amazon App Developer and got Error - "Failed to validate launch path. The launch path specifies the starting point of the app that is local to the zip file."
How to get the Launch Path an Android APK. I have tried to unzip the APK.
What tool did you use to build your app? Is your app supposed to be a native Android app or Web app?
Based on your screenshot, you've registered your app as a "Mobile Web" app (aka Web app) on Amazon Developer Console. For Web app, you don't upload an apk. Instead, you upload a .zip file which has a specific folder structure. You can check the Web app documentation for more info.
If you have an .apk file, you're likely working with a native Android app. In such case, you should create a new "Android" app on Amazon Developer Console in order to upload your APK.