error MT1108: Could not find developer tools for this device - ios

Question

I have an Xamarin iOS application that can run fine on my device when I start the application on "Debug" configuration. Now I created a new configuration called "Staging" and duplicated the info.plist and entitlements.plist as info-Staging.plist and entitlements-Staging.plist and want to use those while debugging in the "Staging" configuration. The only difference between them is a different identifier (com.blah.blah). I edited the .csproj as so:
<ItemGroup>
<None Include="packages.config" />
<None Include="Entitlements.plist" Condition="'$(Configuration)' != 'Staging'" />
<None Include="Info.plist" Condition="'$(Configuration)' != 'Staging'" />
<None Include="Info-Staging.plist" Condition="'$(Configuration)' == 'Staging'">
<LogicalName>Info.plist</LogicalName>
</None>
<None Include="Entitlements-Staging.plist" Condition="'$(Configuration)' == 'Staging'">
<LogicalName>Entitlements.plist</LogicalName>
</None>
</ItemGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Staging|AnyCPU' ">
<Optimize>false</Optimize>
<OutputPath>bin\Staging</OutputPath>
<DefineConstants></DefineConstants>
<WarningLevel>4</WarningLevel>
<CodesignKey>iPhone Developer</CodesignKey>
<CodesignEntitlements>Entitlements-Staging.plist</CodesignEntitlements>
<MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>
<MtouchLink>SdkOnly</MtouchLink>
<MtouchHttpClientHandler>HttpClientHandler</MtouchHttpClientHandler>
<AssemblyName>MyApp.iOS</AssemblyName>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<DefineConstants>DEBUG;ENABLE_TEST_CLOUD;</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<ConsolePause>false</ConsolePause>
<DeviceSpecificBuild>true</DeviceSpecificBuild>
<MtouchDebug>true</MtouchDebug>
<MtouchFastDev>true</MtouchFastDev>
<MtouchFloat32>true</MtouchFloat32>
<MtouchArch>ARMv7, ARM64</MtouchArch>
<MtouchTlsProvider>Default</MtouchTlsProvider>
<PlatformTarget>x86</PlatformTarget>
</PropertyGroup>
But when I try to build the app on my device, I get this message:
error MT1108: Could not find developer tools for this 10.2.1 (14D27) device. Please ensure you are using a compatible Xcode version and then connect this device to Xcode to install the development support files.

Answer 1

This Problem is very simple Actually Just check if the Installed Xcode version in your MAC machine and the Xamarin version that you have right now in your System match. For that you need to check in Visual studio as Tools/Options/Xamarin