Error MT1108: Could not find tools for this device

Question

I have a Xamarin iOS application that can work fine on my device when I launch the application in the Debug configuration. Now I created a new configuration called "Staging" and duplicated entitlements.plist and entitlements.plist as info-Staging.plist and entitlements-Staging.plist and would like to use them when debugging in the "Staging" configuration. The only difference between the two is a different identifier (com.blah.blah). I edited .csproj like this:

 <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 create an application 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. In fact, just check if the Installed Xcode version is installed on your MAC machine and the Xamarin version that you have right now on your system. To do this, you need to check Visual Studio as "Tools / Options / Xamarin"