Android SDK

エラーメッセージ

[2017-03-19 01:03:31.712] [Error] Attempt to unzip Android archive 'system-image-23-x86-google' found in <USER_HOME>\Temp\Xamarin\downloads\x86-23_r19.zip failed.
[2017-03-19 01:03:31.722] [Info] Status: failed.
[2017-03-19 01:03:31.732] [Error] Android SDK Platform API level 23, ABI x86, tag google_apis system image.
[2017-03-19 01:03:31.742] [Exception] Installation of Android SDK component 'system-image-23-x86-google' failed with exception.
[2017-03-19 01:03:31.742] [Exception] System.InvalidOperationException: Component installation failed
[2017-03-19 01:03:31.742] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidComponentSystemImage.Install(String archivePath, String androidSdkRoot)
[2017-03-19 01:03:31.742] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidSDKInstaller.InstallComponent(AndroidComponentBase component, AndroidSdkInstance instance)
[2017-03-19 01:03:31.752] [Info] Status: failed.
[2017-03-19 01:03:31.762] [Info] Status: failed.
[2017-03-19 01:03:31.771] [Exception] Installation of software item 'Android SDK' failed with exception.
[2017-03-19 01:03:31.771] [Exception] Xamarin.Web.Installer.InstallException: Failed to install Android archive. ---> System.InvalidOperationException: Component installation failed
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidComponentSystemImage.Install(String archivePath, String androidSdkRoot)
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidSDKInstaller.InstallComponent(AndroidComponentBase component, AndroidSdkInstance instance)
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidSDKInstaller.InstallComponents[T](List`1 components, AndroidSdkInstance instance, String progressMessageFormat, Object[] args)
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidSDKInstaller.InstallSystemImage(List`1 components, AndroidSdkInstance instance, String apiLevel, SystemImageSpec sis)
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Installer.AndroidSDK.AndroidSDKInstaller.Install(AndroidSdkInstance instance, InstallationSet installationSet)
[2017-03-19 01:03:31.771] [Exception] 場所 Xamarin.Web.Installer.Installer.AndroidSoftwareItem.Install(UInt32 tryNumber)

原因

Install時に、フォルダへのアクセスが拒否されていた

対策

エラーウインドウの「Once all the required components are selected (you can select others as well, if you wish) start the installation. Click here to open target dir」、「Click here」をクリックし、Android SDK toolsのexeへアクセス
exeを管理者権限で実行
手動で、インストールを求められている以下のパッケージをDL
- Android SDK Tools
- Android SDK Platform-tools
- Android SDK Build-tools
- Android API 23

(そもそもXamarinInstallerを「管理者権限で実行」すれば、本エラーを発生させずに済むかもしれません)

Xamarin.VisualStudio

エラーメッセージ

Installation of 'Xamarin' failed with more than one exception (attempt 3)
Errors while installing items.
Exception type: System.AggregateException
Installation of archive 'C:\Users\Guess\AppData\Local\Temp\Xamarin\downloads\Xamarin.VisualStudio_4.3.0.789.msi' failed with exception.
Exception type: Xamarin.Web.Installer.InstallException
Full stack trace:
at Xamarin.Web.Installer.Installer.InstallationArchiveHandler.Install(String path, Boolean needsPrivileges)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.InstallDownloadedItem(String url, InstallationArchiveHandler handler, DownloadServiceWorkItem download)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.Install(UInt32 tryNumber)
at Xamarin.Web.Installer.Installer.XamarinVSSoftwareItem.Install(UInt32 tryNumber)
at WindowsInstaller.ProgressPage.InstallationWorker()
Installation of archive 'C:\Users\Guess\AppData\Local\Temp\Xamarin\downloads\Xamarin.VisualStudio_4.3.0.789.msi' failed with exception.
Exception type: Xamarin.Web.Installer.InstallException
Full stack trace:
at Xamarin.Web.Installer.Installer.InstallationArchiveHandler.Install(String path, Boolean needsPrivileges)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.InstallDownloadedItem(String url, InstallationArchiveHandler handler, DownloadServiceWorkItem download)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.Install(UInt32 tryNumber)
at Xamarin.Web.Installer.Installer.XamarinVSSoftwareItem.Install(UInt32 tryNumber)
at WindowsInstaller.ProgressPage.InstallationWorker()
Installation of archive 'C:\Users\Guess\AppData\Local\Temp\Xamarin\downloads\Xamarin.VisualStudio_4.3.0.789 .msi' failed with exception.
Exception type: Xamarin.Web.Installer.InstallException
Full stack trace:
at Xamarin.Web.Installer.Installer.InstallationArchiveHandler.Install(String path, Boolean needsPrivileges)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.InstallDownloadedItem(String url, InstallationArchiveHandler handler, DownloadServiceWorkItem download)
at Xamarin.Web.Installer.Installer.BaseSoftwareItem.Install(UInt32 tryNumber)
at Xamarin.Web.Installer.Installer.XamarinVSSoftwareItem.Install(UInt32 tryNumber)
at WindowsInstaller.ProgressPage.InstallationWorker()

対策

Xamarin Installer PackageをDL
インストール

不思議ですが、Installerパッケージを動かしたら、特に問題なくインストールが完了しました。