Launching 'app' on No Devices?
Android 开发: Launching 'app' on No Devices. Error while waiting for device: AVD Pixel_2_API_24 is already running. If that is not the case, delete the files at C:\Users\lenovo\.android\avd/Pixel_2_API_24.avd/*.lock and try again.
解决方法,不妨新建一个
用真机他不香吗