It is always better to post the messages from the Output windows rather than those provided by the error list in Visual Studio. Anyway it seems you are missing a plugin/module which is referenced in your project (awsSDK). Make sure it is installed to the engine or is inside your Plugins folder in the project root folder.
Make sure you use the plugin together with the custom engine from Github https://github.com/EpicGames/UnrealEngine .
Additionally, have a look at the plugin installation documentation.
Multiplayer With Blueprints Plugin