Unsupported virtual SD card in Android emulator

Question

I do not know why the virtual SD card is no longer working. Someone got any conclusions, or why could this happen?

I am using Android emulator with API 26 (Android O)

Answer 1

To solve this problem, use sd card size> = 512 MB in the emulator. Android studio 2.3.3 created a 100 MB SD card by default.

AOSP Android Oreo source code capture states that a 512 megabyte file is created and mounted as a virtual disk to use the system as an SD card.

Answer 2

I faced the same problem. Like many others, AVDs that have SD cards smaller than 512 MB do not detect the card after upgrading to Android Studio 3. I did the following:

• Stop AVD if starting it
• Open the AVD manager and edit the properties for AVD. Verify that the SD card is 512 MB or larger.
• Restart the AVD.

Your emulator should now be able to detect a map.

Answer 3

I installed a new device using API 24 and the SD card worked fine. I believe that this is due to the fact that API 26 is new, and virtual support for SD cards is not yet available on the emulator.