# \[Error\] necessary prerequisites failed to install. Error Code R-2147943860 **URL:** \ **Category:** Getting Started & Setup\ **Tags:** unreal-engine, question\ **Created:** [January 21, 2016, 11:56am UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801 "2016-01-21T11:56:33Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![anonymous\_user\_a5a3b9f81](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a5a3b9f81](https://forums.unrealengine.com/u/anonymous_user_a5a3b9f81)\ **Post date:** [January 21, 2016, 11:56am UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801/1 "2016-01-21T11:56:33Z")
Hello, I encountered a problem while installing prerequisites in epicgames launcher, with code error in the title, i have no idea how to fix it but please help. Thank you. ---
**Author:** ![knack](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@knack](https://forums.unrealengine.com/u/knack)\ **Post date:** [January 21, 2016, 11:59am UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801/2 "2016-01-21T11:59:09Z")
Check this guide. > **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official... ---
**Author:** ![anonymous\_user\_a5a3b9f81](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_a5a3b9f81](https://forums.unrealengine.com/u/anonymous_user_a5a3b9f81)\ **Post date:** [January 23, 2016, 10:18am UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801/3 "2016-01-23T10:18:17Z")
Oh my! thanks! this saved my life (unblocking port 5222 works perfectly) ---
**Author:** ![este3000](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@este3000](https://forums.unrealengine.com/u/este3000)\ **Post date:** [May 17, 2016, 1:46am UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801/4 "2016-05-17T01:46:46Z")
porfavor alguien que me pueda dar una respuesta al mismo problema del Error Code R-2147943860 pero en español no entiendo mucho ingles. Gracias ---
**Author:** ![este3000](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@este3000](https://forums.unrealengine.com/u/este3000)\ **Post date:** [May 17, 2016, 2:25pm UTC](https://forums.unrealengine.com/t/error-necessary-prerequisites-failed-to-install-error-code-r-2147943860/344801/5 "2016-05-17T14:25:36Z")
porfavor alguien que me pueda dar una respuesta al mismo problema del Error Code R-2147943860 pero en español no entiendo mucho ingles. Gracias