Google-Mobile-Ads-SDK - Can not create symbolic link : Access is denied - xamarin

Question

I am trying to embed ads on xamarin pcl project based on link
[for iOS][1]http://motzcod.es/post/154696375922/xamarinforms-google-admob-ads-in-ios
when I followed the instructions. and trying to build the following error occurs
>Done building target "ImplicitlyExpandDesignTimeFacades" in project "App1.iOS.csproj".: (TargetId:61)
1>Target "ResolveReferences: (TargetId:62)" in file "C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets" from project "C:\App1\App1\App1.iOS\App1.iOS.csproj" (target "_UnpackLibraryResources" depends on it):
1>Done building target "ResolveReferences" in project "App1.iOS.csproj".: (TargetId:62)
1>Target "_CollectBundleResources" skipped. Previously built successfully.
1>Target "_XamarinBuildDownloadCore: (TargetId:63)" in file "C:\App1\packages\Xamarin.Build.Download.0.2.2\build\Xamarin.Build.Download.targets" from project "C:\App1\App1\App1.iOS\App1.iOS.csproj" (target "_XamarinBuildDownload" depends on it):
1>Task "Error" skipped, due to false condition; ('$(XamarinBuildDownloadDir)'=='') was evaluated as ('C:\App1\packages\Xamarin.Build.Download.0.2.2\build\..\..\.xbcache\'=='').
1>Using "XamarinDownloadArchives" task from assembly "C:\App1\packages\Xamarin.Build.Download.0.2.2\build\Xamarin.Build.Download.dll".
1>Task "XamarinDownloadArchives" (TaskId:40)
1> Task Parameter:
1> Archives=
1> Gmbladssdk-7.15.0
1> Kind=Tgz
1> Url=https://dl.google.com/dl/cpdc/7d719f8d49d44418-Google-Mobile-Ads-SDK-7.15.0.tar.gz (TaskId:40)
1> Task Parameter:DestinationBase=C:\App1\packages\Xamarin.Build.Download.0.2.2\build\..\..\.xbcache\ (TaskId:40)
1> Extracting C:\Users\cm\AppData\Local\XamarinBuildDownloadCache\Gmbladssdk-7.15.0.tgz to C:\App1\packages\.xbcache\Gmbladssdk-7.15.0 (TaskId:40)
1> Unpacking failure reason:
1> 7-Zip [32] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
1>
1> Scanning the drive for archives:
1> 1 file, 17657943 bytes (17 MiB)
1>
1> Extracting archive: C:\\Users\\cm\\AppData\\Local\\XamarinBuildDownloadCache\\Gmbladssdk-7.15.0.tgz
1> --
1> Path = C:\\Users\\cm\\AppData\\Local\\XamarinBuildDownloadCache\\Gmbladssdk-7.15.0.tgz
1> Type = gzip
1> Headers Size = 107
1>
1> Everything is Ok
1>
1> Size: 38983680
1> Compressed: 17657943
1>
1> 7-Zip [32] 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
1>
1> Scanning the drive for archives:
1> 1 file, 38983680 bytes (38 MiB)
1>
1> Extracting archive: C:\\App1\\packages\\.xbcache\\Gmbladssdk-7.15.0\\Google-Mobile-Ads-SDK-7.15.0.tar
1> --
1> Path = C:\\App1\\packages\\.xbcache\\Gmbladssdk-7.15.0\\Google-Mobile-Ads-SDK-7.15.0.tar
1> Type = tar
1> Physical Size = 38983680
1> Headers Size = 46592
1> Code Page = UTF-8
1>
1> ERROR: Can not create symbolic link : Access is denied. : C:\\App1\\packages\\.xbcache\\Gmbladssdk-7.15.0\Frameworks\GoogleMobileAds.framework\GoogleMobileAds
1> ERROR: Can not create symbolic link : Access is denied. : C:\\App1\\packages\\.xbcache\\Gmbladssdk-7.15.0\Frameworks\GoogleMobileAds.framework\Headers
1> ERROR: Can not create symbolic link : Access is denied. : C:\\App1\\packages\\.xbcache\\Gmbladssdk-7.15.0\Frameworks\GoogleMobileAds.framework\Versions\Current
1>
1> Sub items Errors: 3
1>
1> Archives with Errors: 1
1>
1> Sub items Errors: 3
1> (TaskId:40)
1>C:\App1\packages\Xamarin.Build.Download.0.2.2\build\Xamarin.Build.Download.targets(25,3): error XBD002: Unpacking failed. Please download 'https://dl.google.com/dl/cpdc/7d719f8d49d44418-Google-Mobile-Ads-SDK-7.15.0.tar.gz' and extract it to the 'C:\App1\packages\.xbcache\Gmbladssdk-7.15.0' directory and create an empty file called 'C:\App1\packages\.xbcache\Gmbladssdk-7.15.0.unpacked'.
1>Done executing task "XamarinDownloadArchives" -- FAILED. (TaskId:40)
1>Done building target "_XamarinBuildDownloadCore" in project "App1.iOS.csproj" -- FAILED.: (TargetId:63)
1>
1>Project Performance Summary:
1> 4015 ms C:\App1\App1\App1.iOS\App1.iOS.csproj 1 calls
I am guessing due to permissions. so I tried to unzip the .tar file and places the unzipped files at .xbcache folder as stated. that didn't work too. is there anyway that I overcome this?
Thanks

Answer 1

If I had to guess, it's because of the way you're trying to extract the files. It's frustrating that it was compressed twice. I did it on Win10 using WinZip and first I extracted the gz, then went inside the extracted folder, located the tar and extracted it directly into the final location.