---
id: general
title: Troubleshooting General Issues
sidebar_label: General Issues
custom_edit_url: https://www.internalfb.com/intern/diffusion/FBS/browsefile/master/xplat/sonar/docs/getting-started/troubleshooting/general.mdx
---

import InternalGeneral from './fb/_general.mdx';

Flipper is a work in progress and issues may occur. This page contains known issues associated with the Mac desktop apps and provides steps you can take to try to resolve them.

<InternalGeneral />

## Flipper won't launch on Mac

* If the window is appearing, try opening the Chrome DevTools within Flipper. To do so, from the View menu select 'Toggle Developer Tools' or press CMD+Option+I and check if there are any errors on the console.
* Launch Flipper from the command line using `/Applications/Flipper.app/Contents/MacOS/Flipper`. This should give you some logs, that might be helpful when debugging.
* Delete `~/.flipper` and try relaunching Flipper.
* Delete Flipper from your applications folder and [re-install it](../index.mdx#installation).
* If you're using `yarn start` to run from source, make sure all dependencies are installed correctly by running yarn install.

## Flipper shows weird render artifacts

This is a long standing MacOS + Electron issue outside our control. In general, restarting your computer fixes the problem.
For a quick, temporarily work around start Flipper with hardware acceleration disabled. Please note that this will consume a lot of CPU: `FLIPPER_DISABLE_GPU=1 open -a Flipper`.

## No plugins showing up for your device

* Check your device isn't on the list of [known incompatibilities](#known-incompatibilities).
* Make sure your version of Flipper is up to date.
* Make sure the mobile SDK you are using is relatively recent (<1 month old).
* Open Chrome dev tools within Flipper. To do so, from the View menu select Toggle Developer Tools or press CMD+Option+I and check if there are any errors on the console.
* Delete `~/.flipper`.
* **Uninstall** and reinstall the mobile app.
* Make sure the time and date are set correctly on your mobile device and desktop computer.
* If no app plugins are showing up, there may be a connectivity issue between Flipper and your app. Check [connection issues](#connection-issues) to see if anything is failing.

## Known Incompatibilities

The following devices are known to be incompatible or face issues with Flipper:

* Some Samsung devices ([Tracking Issue](https://github.com/facebook/flipper/issues/92)).
* Genymotion emulators on Android 8+ are reported to have issues.

## I see "No emulators available"

For **Android**, you first need to set up Android Virtual Devices, called AVDs. You
can do this in Android Studio using the [Virtual Device Manager](https://developer.android.com/studio/run/managing-avds).

For **iOS**, after installing Xcode, you should have a default set of simulators set up. However,
it is possible to delete them and there is no easy way to restore them afterwards. You can use
[a script like this one](https://gist.github.com/dynamicguy/e8756a9f0f50af86d6e746d4b1ab6a09) to
recreate the default set.