File>New>Firemonkey Mobile Application
When you click Run, if you get the error
Invalid PLATFORM variable “BWS”. PLATFORM must be one of the following: “Win32”, “Win64”, “Android”, “iOSSimulator”, “iOSDevice”, or “OSX32”. If PLATFORM is defined by your system’s environment, it must be overridden in the RAD Studio IDE or passed explicitly on the command line to MSBuild; e.g., /p:Platform=Win32.
you need to delete the entry PLATFORM from Windows Environment Variables.
Open Android SDK Manager
2048mb SD Card
On Hardware, click New.
Select GPU Emulation.
Change to Yes.
Click Edit AVD.
After all these steps, we can create APK files.