No USB devices or running emulators detected in android studio 2.2.3

Question

I have a problem with the running of anny app want to run it in android studio, if i click on the button of RUN just show up to me that message:

No USB devices or running emulators detected.

And when i click on "Ok" show up that note:

minSdk(API 16) > deviceSdk(API 14).

See image

Answer 1

if i click on the button of RUN just show up to me that message: No USB devices or running emulators detected.

you are not running any emulators and you did not connected any physical device for USB debugging (see Run Apps on a Hardware Device ).

And when i click on "Ok" show up that note: minSdk(API 16) > deviceSdk(API 14).

The emulator is running Android API 14 and your project's minSDK is 16 so your project will not run on devices/emulators < your project's minSDK (read this )

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So either change your minSDK to 14 (if this is OK) or test on an device/emulator with SDK >= 16.

Answer 2

Goto Tools > Android > SDK manager and download the required SDK.

While running the app in the emulator make sure that the AVD(Android Virtual Device) has the required API Level or more.

Good luck !