i had this message when i try to build UE4
Severity Code Description Project File Line Suppression State
Warning The referenced project ‘UnrealBuildTool’ is targeting a higher framework version (4.6.1) than this project’s current target framework version (4.5). This may lead to build failures if types from assemblies outside this project’s target framework are used by any project in the dependency chain. AutomationUtils.Automation
any idea ?