Introduction

Your app has timed out waiting for the emulator to come online.

There are a few reasons this can happen:

The emulator is taking too long to boot up. Try increasing the wait time in your app’s settings.

Your computer doesn’t have enough RAM to run the emulator and your app at the same time. Try closing some other apps or reverting to a lower RAM allocation for the emulator.

The device you’re trying to emulate is not compatible with your version of the Android SDK. Check that you’re using the latest SDK and try again.

What is an error while waiting for device?

An error while waiting for device means that the Android emulator is not running or not responding to commands from Android Studio. To resolve this, you can try the following:

-Restart your computer and launch Android Studio.
-Check that you have a supported version of Android Studio installed.
-If possible, try running your app on a real device.
-Update your graphics drivers.

How to fix an error while waiting for device?

If you are encountering the error while waiting for device timed out after 300 seconds, you can try the following solutions:

1) Restart your computer and try running the emulator again.

2) If you have multiple installed Android SDKs, make sure that you are using the correct one. You can check this by going to Tools > SDK Manager and seeing which SDK is selected under the SDK Platforms tab.

3) Sometimes, the Android Virtual Device (AVD) Manager can get into a bad state where it is not able to automatically download required files for the emulator. In this case, you can try manually downloading the files yourself and then installing them into your Android SDK directory.

4) If none of the above solutions work, then it is likely that your computer does not have the necessary hardware requirements to run the emulator. The Android Emulator requires a processor that supports Intel VT-x technology.

Conclusion

If you’re seeing this error, it means that the Android Emulator is taking too long to boot up. This can happen for a number of reasons, but the most common one is that your computer doesn’t have enough RAM.

To fix this, you’ll need to increase the amount of RAM that is allocated to the Android Emulator. To do this, open up the Android Emulator settings screen and increase the RAM allocation. You’ll need to restart the emulator for the changes to take effect.