Packaging failed after installing Visual Studio

Hi, I’m sorry if this has been asked too many times but after installing Visual Studio I tried to package my project and it failed afterwards. I’m not a programmer so I don’t understand what any of this means but this is what I get from the output log:

UATHelper: Packaging (Windows (64-bit)):   WARNING: Visual Studio 2015 is installed, but is missing the C++ toolchain. Please verify that "Common Tools for Visual C++ 2015" are selected from the Visual Studio 2015 installation options.
UATHelper: Packaging (Windows (64-bit)):   ERROR: Visual Studio 2015 must be installed in order to build this target.
UATHelper: Packaging (Windows (64-bit)):          (see C:\Users\kiara\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\UBT-MyProject-Win64-Shipping.txt for full exception trace)
UATHelper: Packaging (Windows (64-bit)): Took 5.7407553s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Windows (64-bit)): ERROR: UnrealBuildTool failed. See log for more details. (C:\Users\kiara\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\UBT-MyProject-Win64-Shipping.txt)
UATHelper: Packaging (Windows (64-bit)):        (see C:\Users\kiara\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\Log.txt for full exception trace)
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=5 (5)
PackagingResults: Warning: Visual Studio 2015 is installed, but is missing the C++ toolchain. Please verify that "Common Tools for Visual C++ 2015" are selected from the Visual Studio 2015 installation options.
PackagingResults: Error: Visual Studio 2015 must be installed in order to build this target.
PackagingResults: Error: UnrealBuildTool failed. See log for more details. (C:\Users\kiara\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.21\UBT-MyProject-Win64-Shipping.txt)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Error
LogSlate: Took 0.053898 seconds to synchronously load lazily loaded font '../../../Engine/Content/Slate/Fonts/DroidSansMono.ttf' (77K)
LogUnrealEdMisc: Warning: Heartbeat event firing too frequently (25.514 sec). This should never happen. Something is wrong with the timer delegate!
LogHttp: Warning: 000001CF6BAF1BC0: request failed, libcurl error: 6 (Couldn't resolve host name)
LogHttp: Warning: 000001CF6BAF1BC0: libcurl info message cache 0 (Connection 2 seems to be dead!)
LogHttp: Warning: 000001CF6BAF1BC0: libcurl info message cache 1 (Closing connection 2)
LogHttp: Warning: 000001CF6BAF1BC0: libcurl info message cache 2 (TLSv1.2 (OUT), TLS alert, Client hello (1):)
LogHttp: Warning: 000001CF6BAF1BC0: libcurl info message cache 3 (Could not resolve host: datarouter.ol.epicgames.com)
LogHttp: Warning: 000001CF6BAF1BC0: libcurl info message cache 4 (Closing connection 3)
LogHttp: Warning: Retry exhausted on https://datarouter.ol.epicgames.com/datarouter/api/v1/public/data?SessionID=%7BCE368698-4238-3D97-981C-F2B269F57975%7D&AppID=UEEditor.Rocket.Release&AppVersion=4.21.2-4753647%2B%2B%2BUE4%2BRelease-4.21&UserID=5aa6d2564d410a9295ddfe8b9f7c2ca6%7Cd74f8295849f4b6492a4c34a085640f0%7Ce8c6cda4-f939-41f6-9e8d-78dac67a64c4&AppEnvi
ronment=datacollector-binary&UploadType=eteventstream
LogSlate: Window 'Output Log' being destroyed
LogSlate: Window 'Output Log' being destroyed
LogSlate: Only BGRA pngs, bmps or icos are supported in by External Image Picker
LogTemp: Executing iPhonePackager certificates Engine -bundlename com.YourCompany.MyProject
LogTemp: CWD: C:\Program Files\Epic Games\UE_4.21\Engine\Binaries\DotNET\IOS
LogTemp: Initial Dir: C:\Program Files\Epic Games\UE_4.21
LogTemp: Env CWD: C:\Program Files\Epic Games\UE_4.21\Engine\Binaries\DotNET\IOS
LogTemp: BranchPath = DESKTOP-T6JVUED/C/Program Files/Epic Games/UE_4.21/Engine/Binaries --- GameBranchPath = DESKTOP-T6JVUED/C/Program Files/Epic Games/UE_4.21/Engine/Binaries
LogTemp: IPP ERROR: Could not find provision directory 'C:\Users\kiara\AppData\Local/Apple Computer/MobileDevice/Provisioning Profiles/'.
LogSlate: Window 'Project Settings' being destroyed
LogSlate: Window 'Project Settings' being destroyed

Read first warning ;p

Visual Studio 2015 is installed, but is missing the C++ toolchain. Please verify that "Common Tools for Visual C++ 2015" are selected from the Visual Studio 2015 installation options.

C++ compiler is not installed by default, you always need to enable it during installation