Microsoft ASP.NET and Web Tools

Microsoft Free

Provides web tooling updates for ASP.NET as well as Preview 2 tooling for Microsoft .NET Core 1.0.1

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Visual Studio
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by muratiakos | October 04 2016

Smoothly executes xtests for ASP.NET Core from VS, although Test project templates are missing somehow - I could only create those with yeoman.

by Programming Ninja | September 29 2016


by Pavel Birioukov | September 26 2016

Restart a computer after installation??? Is it 2000 year now???

by Jamie_D_ | September 25 2016

Some serious issues with previous versions. The newer tools seem to work ok.

by penney4611 | September 21 2016

If you can't install the preview 2 . you can install it through VPN. it's ok.

by ScottLuo | September 20 2016

0x80072f8a错误的,你看看是不是你的证书过期了,我发现不管我安装这个插件还是SSDT,都会出现这个错误。看了下log,发现是证书过期,导致无法从 这个网址下载东西,解决证书问题之后,就能成功安装了

by 笑问苍天 | September 20 2016


by Chihwei Tian | September 18 2016

First, You must install the .net Core SDK for Windows

by David Rogers | September 16 2016

Wow! I'm glad I read the comments before installing. I wish you guys would not mix standard updates with previews. Or at least include the "preview" word in the title of the update.

by 丰收 | September 16 2016

not working. 0x80072f8a

by Ben Kilian | September 09 2016

Not working. Adding SKIP_VSU_CHECK=1 not working either.

by OakeTrivium | September 07 2016

by Philip Holly | August 18 2016

Installed fine for me.
Edit: Make sure you're not running Kestrel server in the background or else actions like Add Controller will not work.

by John B. (Pittsburgh) | August 16 2016

by Demented Devil | August 16 2016

So far so good - installed on three different machines without any problem...

by aserraric | August 16 2016

As buggy as the 2.0.0 version.
After installation, MVC5 projects no longer build.

by Li Key | August 16 2016

Installation Completed Successfully.

Thank you, really like the 2015/Core changes to date.

by dinotom | August 11 2016

So everyone is clear, you install with this command line FROM THE DIRECTORY YOU DOWNLOADED THE FILE TO. DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1

by AndrewTatham | August 09 2016

requires SKIP_VSU_CHECK=1 to install

Whoever is responsible should be made to do the walk of shame.

by Ricardo Brea | August 09 2016

Poor testing, tools of this importance must be tested more. Please improve your testing procedures. Thanks

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  • ASP.NET and Web Tools for Visual Studio 2013
    1 Posts | Last post September 15, 2016
    • Where is ASP.NET and Web Tools for Visual Studio 2013 ?
  • ESLint validation is broken
    1 Posts | Last post September 13, 2016
    • ESLint is not recognizing global declarations like the following, properly:
      /* global fields:true */
      That variable is defined globally on the .cshtml page, and then this global reference is made in a .js script file.  It should allow me to assign a new value to the fields variable, and not create any warnings or errors.  However, it is creating an error condition, which is preventing other tools from operating correctly.
      Other people have been running into various issues related to ESLint, and whatever you are using for CSS validation.  When these validation tools return errors (which are invalid errors), it prevents other tools from being able to compile, minify, etc.  These bugs need to be fixed.
      There needs to be some way to completely turn off validation, and allow the other tools to work, as this is going to be a never-ending issue.
  • The hash value is not correct
    1 Posts | Last post September 08, 2016
    • I have installed new version of VS 2015 with update 3. Then I install this extension but I get a error: "The hash value is not correct". I'm follow some solution on internet but it's still not work:
      - Move installer to empty folder.
      - Delete all package cache item.
      - Disalbe Internet Explorer Enhanced Security Configuration
      I'm using windows server 2012 R2 and latest version of visual studio 2015 Enterprise with update 3.
  • What changed with August release
    4 Posts | Last post August 18, 2016
    • It seems that on August 15th, a new version was released. (The previous version was 14.1.20624.0, released in June, but now it's 14.1.20810.0.) As I write this there isn't any description of what changed.
    • Looks like a minor version bump - presumably to resolve installer related issues some folk had with the previous build.
    • The June release was Preview 1, the August 15th release is Preview 2.
    • Actually, this time, they have a release note.
      I think it will be greate if they provide a link in the Description page.
  • What did /layout do?
    1 Posts | Last post August 09, 2016
    • I run the installer with /layout. I downloaded stuff for a while. But now, where are they? I assumed they must be right besides the exe file. But they aren't.
  • Install fails to detect VS 2015 Update 3
    20 Posts | Last post August 08, 2016
    • Installation is be blocked because the install is not properly detecting that I have VS 2015 Update 3.  Anyone getting this or can help I would appreciate it.
      Version of VS 2015: 14.0.25421.03 Update 3
      Logs from install:
      [2010:160C][2016-06-30T09:13:15]i052: Condition 'WixBundleInstalled OR NOT(NetFx45Release < 378675) OR (WixBundleAction=2)' evaluates to true.
      [2010:160C][2016-06-30T09:13:15]i052: Condition 'WixBundleInstalled OR VS2015DevEnvExists OR VS2015WebExpressExists OR (WixBundleAction=2)' evaluates to true.
      [2010:160C][2016-06-30T09:13:15]i052: Condition 'WixBundleInstalled OR (((VS2015CommunityUpdateVersion >= v14.0.25420) OR (VS2015ProfessionalUpdateVersion >= v14.0.25420) OR (VS2015EnterpriseUpdateVersion >= v14.0.25420)) OR (VS2015WebExpressUpdateVersion >= v14.0.25420)) OR (SKIP_VSU_CHECK=1) OR (WixBundleAction=2)' evaluates to false.
      [2010:160C][2016-06-30T09:13:15]e000: This product requires Visual Studio 2015 Update 3 or later. Please install Visual Studio 2015 Update 3 or later, then install this product again.
      [2010:160C][2016-06-30T09:13:15]e000: Error 0x81f40001: Bundle condition evaluated to false: WixBundleInstalled OR (((VS2015CommunityUpdateVersion >= v14.0.25420) OR (VS2015ProfessionalUpdateVersion >= v14.0.25420) OR (VS2015EnterpriseUpdateVersion >= v14.0.25420)) OR (VS2015WebExpressUpdateVersion >= v14.0.25420)) OR (SKIP_VSU_CHECK=1) OR (WixBundleAction=2)
      [2010:160C][2016-06-30T09:13:15]i199: Detect complete, result: 0x0
    • I got the exact same thing.  Waiting for the VS 2015 update first now.
    • @schardag/@YsFred4, this is a known issue with Visual Studio Update 3. The issue is that the underlying feed that drives the update is not being updated. Other customers who reported the same issue said that the feed got updated eventually but might take several trials. Our setup team is looking into this and I am following up to see when they will have the issue fixed and whether there is a workaround.
    • Here is a workaround that worked for some users - Go to a command prompt and type ipconfig /flushdns then reboot.
    • I have installed update 3 but I'm still getting this error. Log file says VS2015CommunityUpdateVersion is 14.0.25123 but help window says Visual Studio 2015 with Update 3.
    • I too receive this. ipconfig work around didn't work.
    • Check this thread
      TL-DR: install it by running with SKIP_VSU_CHECK parameter
      DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1
    • Excelent solution Zeratul Works fine.
    • Zeratul's solution worked for me as well. 
    • Yes...solution is working for me too
    • Thanks Zeratul!! Your solution worked for me too! 
      I thought I was doing something wrong, but when the same thing happens in two completely separate environments I figured there was something wrong!
    • Same here. Thanks Zeratul :)
    • You're the man, Zuratul.
    • Same here. Thanks Zeratul :)
    • Same here!
      apparently this condition fails:
      OR NOT(
          (VS2015CommunityUpdateVersion <> VS2015UpdateVersion) 
          AND (VS2015CommunityExists) 
          AND (VS2015UpdateVersionExists)
        OR (
          (VS2015ProfessionalUpdateVersion <> VS2015UpdateVersion) 
          AND (VS2015ProfessionalExists) 
          AND (VS2015UpdateVersionExists)
        OR (
          (VS2015EnterpriseUpdateVersion <> VS2015UpdateVersion) 
          AND (VS2015EnterpriseExists) 
          AND (VS2015UpdateVersionExists)
        OR (
          (VS2015WebExpressUpdateVersion <> VS2015UpdateVersion) 
          AND (VS2015WebExpressExists) 
          AND (VS2015UpdateVersionExists))
      OR (SKIP_VSU_CHECK=1) 
      OR (WixBundleAction=2)' evaluates to false.
      Dunno if related but i installed an update to the WIX Toolset before i tried the update...
    • Thanks, Zeratul. :)
    • Help me, I am a beginner, i would like who anyone explain  me, step by step, how I do the solution of Zeratul. Thanks!
    • See the discussion here:
      The solution, as @BadEnuf mentioned, is to run the installer with the command line argument (setup directive) SKIP_VSU_CHECK=1
      So just open a command prompt (or PowerShell prompt) in the directory where you downloaded the file and type DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1 (for PowerShell write .\DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1)
    • Hi ApoFelipe, for a step by step follow below
      Rather than running the update, you have the option to download the App (DotNetCore.1.0.0-VS2015Tools.Preview2.exe) onto your hard drive.
      Step 1: Dowload the App onto your C: Drive.
      Step 2: Open the Command Prompt with Admin priviledges.
      Step 3: Change the directory from C:\Windows\System32> to C: by typing in cd/
      Step 4: Copy and paste DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1 
      Step 5: Press Enter
    • Thanks too much!!! I've been hearing some people saying: "run the installer from the commandline", but i did not know how I would complete this. Thanks Roger P England and Mavaddat!
  • Version 14.1.20624 installed ok, but Visual Studio still shows the update and version 14.1.20203
    5 Posts | Last post August 07, 2016
    • Version 14.1.20624 installed ok, but Visual Studio still shows the update and version 14.1.20203
      I completely uninstalled 14.1.20624, rebooted, and reinstalled it succesfully. VS still shows the update and the old version.
      Same problem for Tools for Universal Windows Apps 1.4.1, it still shows v1.3.0. Tap update result in this error:
      Microsoft Visual Studio
      The selected Visual Studio item 'Tools for Universal Windows Apps (1.4.1) and Windows SDK (10.0.14393)' failed to install.  Check the %TEMP% directory for VS install logs.
      WTF ?
    • Ok fixed it by relaunching the vs installer, selecting all required items (including these ones) and manually copying a missing package 
      EspC from E:\packages\EspC to the correct windows package cache folder.
    • By vs installer, i mean the real vs pro installer from the iso DVD.
    • Ouuups, in fact no. It didn't worked. Same problem.
    • It only fixed Tools for universal windows apps 1.4.1 which installed successfully. and web tools say it is already installed.
  • Setup Fail
    3 Posts | Last post August 02, 2016
    • Setup has detected that Visual Studio 2015 Update 3 may not be completely installed. Please repair Visual Studio 2015 Update 3, then install this product again.
      Version of VS 2015 Enterprise: 14.0.25424.00 Update 3
    • I am having exactly this problem; same version of Enterprise as well. 
    • Note: The solution stated elsewhere on this page seemed to work OK.
      DotNetCore.1.0.0-VS2015Tools.Preview2.exe SKIP_VSU_CHECK=1
  • Install Error with Hash mismatch
    4 Posts | Last post July 19, 2016
    • I tried for 3 times for installing the DotNetCore.1.0.0-VS2015Tools.Preview2.exe, but all of were failed and show same error "Hash mismatch".
      Is any one can help to fix this problem?
      Here is the error log:
      Error 0x80091007: Hash mismatch for path: C:\ProgramData\Package Cache\.unverified\WebToolsExtensionsVS14, expected: F752395980A6E1BB22418B359BB959EDA4564228, actual: 4EEA4284E7F482D551EF2681C0279CBD2FEF60E5
      [1A00:0E8C][2016-07-13T13:52:27]e000: Error 0x80091007: Failed to verify hash of payload: WebToolsExtensionsVS14
      [1A00:0E8C][2016-07-13T13:52:27]e310: Failed to verify payload: WebToolsExtensionsVS14 at path: C:\ProgramData\Package Cache\.unverified\WebToolsExtensionsVS14, error: 0x80091007. Deleting file.
      [1A00:0E8C][2016-07-13T13:52:27]e000: Error 0x80091007: Failed to cache payload: WebToolsExtensionsVS14
      [1844:0864][2016-07-13T13:52:27]e314: Failed to cache payload: WebToolsExtensionsVS14 from working path: C:\Users\top_d\AppData\Local\Temp\{1DD8A883-3241-44BF-A405-CB44A7FCD336}\WebToolsExtensionsVS14, error: 0x80091007.
      [1844:0864][2016-07-13T13:52:27]e349: Application requested retry of payload: WebToolsExtensionsVS14, encountered error: 0x80091007. Retrying...
      [1844:0864][2016-07-13T13:52:27]w343: Prompt for source of package: WebToolsExtensionsVS14, payload: WebToolsExtensionsVS14, path: D:\top_d\Downloads\packages\WebToolsExtensionsVS14_rc2_39.msi
      [1844:0864][2016-07-13T13:52:30]i338: Acquiring package: WebToolsExtensionsVS14, payload: WebToolsExtensionsVS14, download from:
      [1A00:0E8C][2016-07-13T13:53:54]e000: Error 0x80091007: Hash mismatch for path: C:\ProgramData\Package Cache\.unverified\WebToolsExtensionsVS14, expected: F752395980A6E1BB22418B359BB959EDA4564228, actual: 4EEA4284E7F482D551EF2681C0279CBD2FEF60E5
      [1A00:0E8C][2016-07-13T13:53:54]e000: Error 0x80091007: Failed to verify hash of payload: WebToolsEx
    • Hello, this problem has been solved? Please share it with me.
      I've had the same problem.
      WebToolsExtensionsVS14_rc2_39.msi This file is corrupted.
    • Hi DLDJL
      Sorry , it's not solved.  
    • Does your computer use 3rd party disk encryption?  I had issues with Dell's encryption messing up MD5s on MSDN ISOs.
  • Missing nuget packages
    1 Posts | Last post July 14, 2016
    • I am installing this but I always get stucked close to the end because of missing package for nuget tools. I think I have the latest version installed separately but this NetCore installer looks for the specific version.
      I have VS 2015 Ent update 3 installed
      > I search and I cant find a way to download the version directly, failed.
      > I tried to hack the package cache by creating the folder and copy the new MSI, failed.
      > I copy my colleague package package but the specific version is not listed there either.
      C:\ProgramData\Package Cache\{E57FDCC5-5E29-3BDE-B24F-0031FDD2D6EE}v3.1.60717.741\packages\WPT\
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