.NET Core SDK 安装程序无法在 Windows 2012 R2 Standard 上安装答案

【问题标题】：.NET Core SDK Installer failed to install on windows 2012 R2 Standard.NET Core SDK 安装程序无法在 Windows 2012 R2 Standard 上安装
【发布时间】：2017-01-27 11:16:13
【问题描述】：

我使用 Jenkins 为 CI 设置构建服务器。我正在尝试从https://www.microsoft.com/net/download 安装 .NET Core SDK 但是我尝试执行下载的DotNetCore.1.0.1-SDK.1.0.0.Preview2-003131-x64.exe 我得到未指定的错误

这是完整的日志

[07E8:0FE4][2016-09-19T12:09:36]i001: Burn v3.10.2.2516, Windows v6.3 (Build 9600: Service Pack 0), path: C:\Users\CODESC~1\AppData\Local\Temp\3\{0D7DA4AD-993A-4038-A544-14369A3FAF40}\.cr\DotNetCore.1.0.1-SDK.1.0.0.Preview2-003131-x64.exe
[07E8:0FE4][2016-09-19T12:09:36]i000: Initializing string variable 'DOTNETHOME' to value '[ProgramFiles6432Folder]dotnet'
[07E8:0FE4][2016-09-19T12:09:36]i000: Initializing string variable 'BUNDLEMONIKER' to value 'Microsoft .NET Core 1.0.1 - SDK 1.0.0 Preview 2-003131'
[07E8:0FE4][2016-09-19T12:09:36]i009: Command Line: '-burn.clean.room=C:\Users\codescriptor\Downloads\DotNetCore.1.0.1-SDK.1.0.0.Preview2-003131-x64.exe'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting string variable 'WixBundleOriginalSource' to value 'C:\Users\myuser\Downloads\DotNetCore.1.0.1-SDK.1.0.0.Preview2-003131-x64.exe'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting string variable 'WixBundleOriginalSourceFolder' to value 'C:\Users\myuser\Downloads\'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting string variable 'WixBundleLog' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936.log'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting string variable 'WixBundleName' to value 'Microsoft .NET Core 1.0.1 - SDK 1.0.0 Preview 2-003131 (x64)'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting string variable 'WixBundleManufacturer' to value 'Microsoft Corporation'
[07E8:0B8C][2016-09-19T12:09:36]i000: Setting numeric variable 'WixStdBALanguageId' to value 1033
[07E8:0B8C][2016-09-19T12:09:36]i000: Setting version variable 'WixBundleFileVersion' to value '1.0.0.3131'
[07E8:0FE4][2016-09-19T12:09:36]i100: Detect begin, 5 packages
[07E8:0FE4][2016-09-19T12:09:36]i000: Registry key not found. Key = 'SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64'
[07E8:0FE4][2016-09-19T12:09:36]i000: Setting numeric variable 'VCRedist_KeyExists' to value 0
[07E8:0FE4][2016-09-19T12:09:36]i000: Registry key not found. Key = 'SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64'
[07E8:0FE4][2016-09-19T12:09:36]i052: Condition '(VCRedist_KeyExists AND VCRedist_KeyValue >= "v14.0.23506.00")' evaluates to false.
[07E8:0FE4][2016-09-19T12:09:36]i101: Detected package: VC_redist.x64.exe, state: Absent, cached: None
[07E8:0FE4][2016-09-19T12:09:36]i101: Detected package: dotnet_dev_win_x64.1.0.0_preview2_003131.msi, state: Absent, cached: None
[07E8:0FE4][2016-09-19T12:09:36]i101: Detected package: dotnet_sharedframework_win_x64.1.0.1.msi, state: Absent, cached: None
[07E8:0FE4][2016-09-19T12:09:36]i101: Detected package: dotnet_hostfxr_win_x64.1.0.1.msi, state: Absent, cached: None
[07E8:0FE4][2016-09-19T12:09:36]i101: Detected package: dotnet_host_win_x64.1.0.1.msi, state: Absent, cached: None
[07E8:0FE4][2016-09-19T12:09:36]i199: Detect complete, result: 0x0
[07E8:0B8C][2016-09-19T12:09:41]i000: Setting numeric variable 'EulaAcceptCheckbox' to value 1
[07E8:0B8C][2016-09-19T12:09:45]i000: Setting numeric variable 'EulaAcceptCheckbox' to value 1
[07E8:0FE4][2016-09-19T12:09:45]i200: Plan begin, 5 packages, action: Install
[07E8:0FE4][2016-09-19T12:09:45]w321: Skipping dependency registration on package with no dependency providers: VC_redist.x64.exe
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleLog_VC_redist.x64.exe' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_000_VC_redist.x64.exe.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleRollbackLog_dotnet_dev_win_x64.1.0.0_preview2_003131.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_001_dotnet_dev_win_x64.1.0.0_preview2_003131.msi_rollback.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleLog_dotnet_dev_win_x64.1.0.0_preview2_003131.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_001_dotnet_dev_win_x64.1.0.0_preview2_003131.msi.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleRollbackLog_dotnet_sharedframework_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_002_dotnet_sharedframework_win_x64.1.0.1.msi_rollback.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleLog_dotnet_sharedframework_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_002_dotnet_sharedframework_win_x64.1.0.1.msi.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleRollbackLog_dotnet_hostfxr_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_003_dotnet_hostfxr_win_x64.1.0.1.msi_rollback.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleLog_dotnet_hostfxr_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_003_dotnet_hostfxr_win_x64.1.0.1.msi.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleRollbackLog_dotnet_host_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_004_dotnet_host_win_x64.1.0.1.msi_rollback.log'
[07E8:0FE4][2016-09-19T12:09:45]i000: Setting string variable 'WixBundleLog_dotnet_host_win_x64.1.0.1.msi' to value 'C:\Users\CODESC~1\AppData\Local\Temp\Microsoft_.NET_Core_1.0.1_-_SDK_1.0.0_Preview_2-003131_(x64)_20160919120936_004_dotnet_host_win_x64.1.0.1.msi.log'
[07E8:0FE4][2016-09-19T12:09:45]i201: Planned package: VC_redist.x64.exe, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: None, cache: Yes, uncache: No, dependency: None
[07E8:0FE4][2016-09-19T12:09:45]i201: Planned package: dotnet_dev_win_x64.1.0.0_preview2_003131.msi, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
[07E8:0FE4][2016-09-19T12:09:45]i201: Planned package: dotnet_sharedframework_win_x64.1.0.1.msi, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
[07E8:0FE4][2016-09-19T12:09:45]i201: Planned package: dotnet_hostfxr_win_x64.1.0.1.msi, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
[07E8:0FE4][2016-09-19T12:09:45]i201: Planned package: dotnet_host_win_x64.1.0.1.msi, state: Absent, default requested: Present, ba requested: Present, execute: Install, rollback: Uninstall, cache: Yes, uncache: No, dependency: Register
[07E8:0FE4][2016-09-19T12:09:45]i299: Plan complete, result: 0x0
[07E8:0FE4][2016-09-19T12:09:45]i300: Apply begin
[07E8:0FE4][2016-09-19T12:09:45]i010: Launching elevated engine process.
[07E8:0FE4][2016-09-19T12:09:46]i011: Launched elevated engine process.
[07E8:0FE4][2016-09-19T12:09:46]i012: Connected to elevated engine.
[0D20:07B4][2016-09-19T12:09:46]i358: Pausing automatic updates.
[0D20:07B4][2016-09-19T12:09:46]i359: Paused automatic updates.
[0D20:07B4][2016-09-19T12:09:46]i370: Session begin, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, options: 0x7, disable resume: No
[0D20:07B4][2016-09-19T12:09:47]i000: Caching bundle from: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\.be\dotnet-dev-win-x64.1.0.0-preview2-003131.exe' to: 'C:\ProgramData\Package Cache\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}\dotnet-dev-win-x64.1.0.0-preview2-003131.exe'
[0D20:07B4][2016-09-19T12:09:47]i320: Registering bundle dependency provider: {003165d2-8bbe-4e00-a6a2-631fb72c1a52}, version: 1.0.0.3131
[0D20:07B4][2016-09-19T12:09:47]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, resume: Active, restart initiated: No, disable resume: No
[07E8:0A40][2016-09-19T12:09:47]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\myuser\Downloads\VC_redist.x64.exe
[07E8:0A40][2016-09-19T12:09:47]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[07E8:0A40][2016-09-19T12:09:47]e000: Error 0x80072f07: Failed to send request to URL: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409, trying to process HTTP status code anyway.
[07E8:0A40][2016-09-19T12:09:47]e000: Error 0x80072f76: Failed attempt to download URL: 'http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409' to: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe'
[07E8:0A40][2016-09-19T12:09:47]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\myuser\Downloads\VC_redist.x64.exe
[07E8:0A40][2016-09-19T12:09:50]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[07E8:0A40][2016-09-19T12:09:50]e000: Error 0x80072f07: Failed to send request to URL: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409, trying to process HTTP status code anyway.
[07E8:0A40][2016-09-19T12:09:50]e000: Error 0x80072f76: Failed attempt to download URL: 'http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409' to: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe'
[07E8:0A40][2016-09-19T12:09:50]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\myuser\Downloads\VC_redist.x64.exe
[07E8:0A40][2016-09-19T12:09:53]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[07E8:0A40][2016-09-19T12:09:53]e000: Error 0x80072f07: Failed to send request to URL: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409, trying to process HTTP status code anyway.
[07E8:0A40][2016-09-19T12:09:53]e000: Error 0x80072f76: Failed attempt to download URL: 'http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409' to: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe'
[07E8:0A40][2016-09-19T12:09:53]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\myuser\Downloads\VC_redist.x64.exe
[07E8:0A40][2016-09-19T12:09:56]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[07E8:0A40][2016-09-19T12:09:56]e000: Error 0x80072f07: Failed to send request to URL: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409, trying to process HTTP status code anyway.
[07E8:0A40][2016-09-19T12:09:56]e000: Error 0x80072f76: Failed attempt to download URL: 'http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409' to: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe'
[07E8:0A40][2016-09-19T12:09:56]e000: Error 0x80072f76: Failed to acquire payload from: 'http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409' to working path: 'C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe'
[07E8:0A40][2016-09-19T12:09:56]e313: Failed to acquire payload: VC_redist.x64.exe to working path: C:\Users\CODESC~1\AppData\Local\Temp\3\{0286308F-D022-4BF4-ABB5-2740FCDC1C23}\VC_redist.x64.exe, error: 0x80072f76.
[07E8:0FE4][2016-09-19T12:09:56]e000: Error 0x80072f76: Cache thread exited unexpectedly.
[0D20:07B4][2016-09-19T12:09:56]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, resume: None, restart: None, disable resume: No
[0D20:07B4][2016-09-19T12:09:56]i330: Removed bundle dependency provider: {003165d2-8bbe-4e00-a6a2-631fb72c1a52}
[0D20:07B4][2016-09-19T12:09:56]i352: Removing cached bundle: {003165d2-8bbe-4e00-a6a2-631fb72c1a52}, from path: C:\ProgramData\Package Cache\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}\
[0D20:07B4][2016-09-19T12:09:56]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, resume: None, restart initiated: No, disable resume: No
[07E8:0FE4][2016-09-19T12:09:56]i399: Apply complete, result: 0x80072f76, restart: None, ba requested restart:  No

注意：在构建服务器上，我已经安装了 .Net 4.6.2，因为我几乎没有其他针对 4.6.2 和 4.5.2 的项目。另请注意，我没有在构建服务器上安装了 VS 2015，但我确实在构建服务器上安装了 VS 2013。
我不确定在安装 .Net core SDK 之前是否还需要安装 VS 2015

更新1
基于谷歌搜索0x80072f76 错误与互联网连接有关但是连接在服务器上工作，这就是我首先下载安装程序的方式。

更新 2 所以我通过允许 IE 下载文件来修复0x80072f76 问题。但是现在我得到了不同的错误0x80070490 element not found，下面的日志。 （注意我只包含了错误行中的日志）

[08B8:0DF0][2016-09-19T13:11:36]e000: Error 0x80070490: Failed to find expected public key in certificate chain.
[08B8:0DF0][2016-09-19T13:11:36]e000: Error 0x80070490: Failed to verify expected payload against actual certificate chain.
[08B8:0DF0][2016-09-19T13:11:36]e000: Error 0x80070490: Failed to verify signature of payload: VC_redist.x64.exe
[08B8:0DF0][2016-09-19T13:11:36]e310: Failed to verify payload: VC_redist.x64.exe at path: C:\ProgramData\Package Cache\.unverified\VC_redist.x64.exe, error: 0x80070490. Deleting file.
[08B8:0DF0][2016-09-19T13:11:36]e000: Error 0x80070490: Failed to cache payload: VC_redist.x64.exe
[04DC:0990][2016-09-19T13:11:36]e314: Failed to cache payload: VC_redist.x64.exe from working path: C:\Users\CODESC~1\AppData\Local\Temp\3\{A13540BB-FD46-428C-91CC-F1E279981B20}\VC_redist.x64.exe, error: 0x80070490.
[04DC:0990][2016-09-19T13:11:36]e349: Application requested retry of payload: VC_redist.x64.exe, encountered error: 0x80070490. Retrying...
[04DC:0990][2016-09-19T13:11:36]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\codescriptor\Downloads\VC_redist.x64.exe
[04DC:0990][2016-09-19T13:11:39]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[08B8:0DF0][2016-09-19T13:11:41]e000: Error 0x80070490: Failed to find expected public key in certificate chain.
[08B8:0DF0][2016-09-19T13:11:41]e000: Error 0x80070490: Failed to verify expected payload against actual certificate chain.
[08B8:0DF0][2016-09-19T13:11:41]e000: Error 0x80070490: Failed to verify signature of payload: VC_redist.x64.exe
[08B8:0DF0][2016-09-19T13:11:41]e310: Failed to verify payload: VC_redist.x64.exe at path: C:\ProgramData\Package Cache\.unverified\VC_redist.x64.exe, error: 0x80070490. Deleting file.
[08B8:0DF0][2016-09-19T13:11:41]e000: Error 0x80070490: Failed to cache payload: VC_redist.x64.exe
[04DC:0990][2016-09-19T13:11:41]e314: Failed to cache payload: VC_redist.x64.exe from working path: C:\Users\CODESC~1\AppData\Local\Temp\3\{A13540BB-FD46-428C-91CC-F1E279981B20}\VC_redist.x64.exe, error: 0x80070490.
[04DC:0990][2016-09-19T13:11:41]e349: Application requested retry of payload: VC_redist.x64.exe, encountered error: 0x80070490. Retrying...
[04DC:0990][2016-09-19T13:11:41]w343: Prompt for source of package: VC_redist.x64.exe, payload: VC_redist.x64.exe, path: C:\Users\codescriptor\Downloads\VC_redist.x64.exe
[04DC:0990][2016-09-19T13:11:44]i338: Acquiring package: VC_redist.x64.exe, payload: VC_redist.x64.exe, download from: http://go.microsoft.com/fwlink/?LinkID=615460&amp;clcid=0x409
[08B8:0DF0][2016-09-19T13:11:45]e000: Error 0x80070490: Failed to find expected public key in certificate chain.
[08B8:0DF0][2016-09-19T13:11:45]e000: Error 0x80070490: Failed to verify expected payload against actual certificate chain.
[08B8:0DF0][2016-09-19T13:11:45]e000: Error 0x80070490: Failed to verify signature of payload: VC_redist.x64.exe
[08B8:0DF0][2016-09-19T13:11:45]e310: Failed to verify payload: VC_redist.x64.exe at path: C:\ProgramData\Package Cache\.unverified\VC_redist.x64.exe, error: 0x80070490. Deleting file.
[08B8:0DF0][2016-09-19T13:11:45]e000: Error 0x80070490: Failed to cache payload: VC_redist.x64.exe
[04DC:0990][2016-09-19T13:11:45]e314: Failed to cache payload: VC_redist.x64.exe from working path: C:\Users\CODESC~1\AppData\Local\Temp\3\{A13540BB-FD46-428C-91CC-F1E279981B20}\VC_redist.x64.exe, error: 0x80070490.
[04DC:0C44][2016-09-19T13:11:45]e000: Error 0x80070490: Cache thread exited unexpectedly.
[08B8:0BFC][2016-09-19T13:11:45]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, resume: None, restart: None, disable resume: No
[08B8:0BFC][2016-09-19T13:11:45]i330: Removed bundle dependency provider: {003165d2-8bbe-4e00-a6a2-631fb72c1a52}
[08B8:0BFC][2016-09-19T13:11:45]i352: Removing cached bundle: {003165d2-8bbe-4e00-a6a2-631fb72c1a52}, from path: C:\ProgramData\Package Cache\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}\
[08B8:0BFC][2016-09-19T13:11:45]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{003165d2-8bbe-4e00-a6a2-631fb72c1a52}, resume: None, restart initiated: No, disable resume: No
[04DC:0C44][2016-09-19T13:11:45]i399: Apply complete, result: 0x80070490, restart: None, ba requested restart:  No

【问题讨论】：

您的日志充满了网络错误。尝试在 Internet Explorer 中下载http://go.microsoft.com/fwlink/?LinkID=615460&clcid=0x409。
@vcsjones 我可以用谷歌浏览器下载它，但不能用 IE 下载。使用 IE，我收到错误 Your current setting do not allow this file to be downloaded。但是，正如我提到的，我已经下载了实际的安装程序（使用 chrome），现在当安装程序尝试获取所需的软件包时，我收到了 0x80072f76 错误。我不确定 IE 与此有什么关系
看日志。日志显示安装程序正在尝试下载该文件，但失败：“尝试下载 URL 失败”。安装程序可能使用与 IE 相同的下载“权限”。您的安装程序是“瘦”安装程序。也就是说，它不包括一个完整的安装程序，只是一个启动其他下载和安装的安装程序。
“无法验证有效负载的签名：VC_redist.x64.exe” 安装程序下载的不是预期下载的。它无法验证下载。
@vcsjones 我看到了，但是如何解决呢？我已经从 MS 站点下载了安装程序

标签： asp.net-core asp.net-core-mvc .net-core asp.net-core-1.0 coreclr

【解决方案1】：

对于0x80070490 element not found 问题，我在这里找到了答案https://github.com/dotnet/core/issues/271

【讨论】：

【解决方案2】：

方案一：手动安装`VC_redist.x64.exe`

从this link 下载并安装 Visual C++ Redistributable for Visual Studio 2015。
重新安装 .NET Core SDK

方案二：暂时关闭IE ESC：

这个解决方案也对我有用。 Here的如何禁用IE增强安全配置：

打开服务器管理器。
点击左侧的“本地服务器”。
在服务器管理器右侧，如果您看到 IE 增强安全配置为“开启”，请单击“开启”。
当弹出新窗口时，请为管理员和用户关闭 IE ESC。
重新安装 .NET Core SDK。
安装后打开 IE ESC。

【讨论】：

这个答案对我有帮助：stackoverflow.com/questions/37739470/…

【解决方案3】：

这当然不是安装程序本身的问题，而是您的 IE 配置选项的问题。

这是来自Microsoft Community:的解决方案

我建议您在 Internet Explorer 中启用文件下载。

一个。打开 Internet Explorer。

b.单击工具，然后单击选项。

c。点击安全标签。

d。选择 Internet 区域。

e。点击自定义关卡按钮，然后向下滚动至下载。

f。确保启用文件下载。

g.点击应用和确定

h。重新启动 Internet Explorer 并检查是否有帮助。

执行上述步骤应该可以解决问题。您可以通过打开 IE 并尝试下载任何文件并确认它能够这样做来进行验证。

【讨论】：

【解决方案4】：

即使我在安装 32 位 .netcore SDK 时也遇到了同样的错误我刚刚安装了 Visual C++ Redistributable Packages https://www.microsoft.com/en-in/download/confirmation.aspx?id=48145 并重新启动了我的机器。

问题就解决了！！

【讨论】：

方案一：手动安装VC_redist.x64.exe

方案二：暂时关闭IE ESC：

方案一：手动安装`VC_redist.x64.exe`