Issue While installing DotNetCore.1.0.0-VS2015Tools.Preview2

[manaspatnaik]

Have Applied VS 2015 Update 3 and currently the version is 14.0.25421.03 Update 3 .However when I install the Preview it fails with message Incorrect Hash Value.Logs are attached below .

I repaired VS multiple time even tried after a complete reinstallation but no luck .

1ED8:26F0][2016-07-06T14:15:00]e000: Error 0x80072eff: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[1ED8:26F0][2016-07-06T14:15:05]e000: Error 0x80072eff: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[2150:2868][2016-07-06T14:15:05]e000: Error 0x80091007: Hash mismatch for path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, expected: 787667EBD2D6FBF424BC3326CDA446CEE61626A2, actual: DA39A3EE5E6B4B0D3255BFEF95601890AFD80709
[2150:2868][2016-07-06T14:15:05]e000: Error 0x80091007: Failed to verify hash of payload: ANCM_IISExpress_x64
[2150:2868][2016-07-06T14:15:05]e310: Failed to verify payload: ANCM_IISExpress_x64 at path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, error: 0x80091007. Deleting file.
[2150:2868][2016-07-06T14:15:05]e000: Error 0x80091007: Failed to cache payload: ANCM_IISExpress_x64
[1ED8:26F0][2016-07-06T14:15:05]e314: Failed to cache payload: ANCM_IISExpress_x64 from working path: C:\Users\H154681\AppData\Local\Temp\{D5070021-7805-4997-9CE3-15C77CBEF6FB}\ANCM_IISExpress_x64, error: 0x80091007.
[1ED8:26F0][2016-07-06T14:15:05]e349: Application requested retry of payload: ANCM_IISExpress_x64, encountered error: 0x80091007. Retrying...
[1ED8:26F0][2016-07-06T14:15:05]w343: Prompt for source of package: ANCM_IISExpress_x64, payload: ANCM_IISExpress_x64, path: C:\Users\H154681\Desktop\packages\ancm_iis_express_x64_en_rc2_39.msi
[1ED8:26F0][2016-07-06T14:15:08]i338: Acquiring package: ANCM_IISExpress_x64, payload: ANCM_IISExpress_x64, download from: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi
[1ED8:26F0][2016-07-06T14:17:14]e000: Error 0x80072eff: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[1ED8:26F0][2016-07-06T14:17:19]e000: Error 0x80072eff: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[2150:2868][2016-07-06T14:17:19]e000: Error 0x80091007: Hash mismatch for path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, expected: 787667EBD2D6FBF424BC3326CDA446CEE61626A2, actual: DA39A3EE5E6B4B0D3255BFEF95601890AFD80709
[2150:2868][2016-07-06T14:17:19]e000: Error 0x80091007: Failed to verify hash of payload: ANCM_IISExpress_x64
[2150:2868][2016-07-06T14:17:19]e310: Failed to verify payload: ANCM_IISExpress_x64 at path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, error: 0x80091007. Deleting file.
[2150:2868][2016-07-06T14:17:19]e000: Error 0x80091007: Failed to cache payload: ANCM_IISExpress_x64
[1ED8:26F0][2016-07-06T14:17:19]e314: Failed to cache payload: ANCM_IISExpress_x64 from working path: C:\Users\H154681\AppData\Local\Temp\{D5070021-7805-4997-9CE3-15C77CBEF6FB}\ANCM_IISExpress_x64, error: 0x80091007.
[1ED8:26F0][2016-07-06T14:17:19]e349: Application requested retry of payload: ANCM_IISExpress_x64, encountered error: 0x80091007. Retrying...
[1ED8:26F0][2016-07-06T14:17:19]w343: Prompt for source of package: ANCM_IISExpress_x64, payload: ANCM_IISExpress_x64, path: C:\Users\H154681\Desktop\packages\ancm_iis_express_x64_en_rc2_39.msi
[1ED8:26F0][2016-07-06T14:17:22]i338: Acquiring package: ANCM_IISExpress_x64, payload: ANCM_IISExpress_x64, download from: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi
[1ED8:26F0][2016-07-06T14:19:26]e000: Error 0x80072eff: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[1ED8:26F0][2016-07-06T14:21:31]e000: Error 0x80072efd: Failed to send request to URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi, trying to process HTTP status code anyway.
[2150:2868][2016-07-06T14:21:31]e000: Error 0x80091007: Hash mismatch for path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, expected: 787667EBD2D6FBF424BC3326CDA446CEE61626A2, actual: DA39A3EE5E6B4B0D3255BFEF95601890AFD80709
[2150:2868][2016-07-06T14:21:31]e000: Error 0x80091007: Failed to verify hash of payload: ANCM_IISExpress_x64
[2150:2868][2016-07-06T14:21:31]e310: Failed to verify payload: ANCM_IISExpress_x64 at path: C:\ProgramData\Package Cache\.unverified\ANCM_IISExpress_x64, error: 0x80091007. Deleting file.
[2150:2868][2016-07-06T14:21:31]e000: Error 0x80091007: Failed to cache payload: ANCM_IISExpress_x64
[1ED8:26F0][2016-07-06T14:21:31]e314: Failed to cache payload: ANCM_IISExpress_x64 from working path: C:\Users\H154681\AppData\Local\Temp\{D5070021-7805-4997-9CE3-15C77CBEF6FB}\ANCM_IISExpress_x64, error: 0x80091007.
[2150:2868][2016-07-06T14:21:31]i351: Removing cached package: Preparation_Uninstall_ASPNET, from path: C:\ProgramData\Package Cache\5509473c-af3f-3169-b338-51c82cc2f554\
[2150:2868][2016-07-06T14:21:31]i351: Removing cached package: SetupBlocked_Install, from path: C:\ProgramData\Package Cache\7ec72441-2fd4-3ea7-b1a6-cf38c6ae4585\
[1ED8:0F9C][2016-07-06T14:21:31]e000: Error 0x80091007: Cache thread exited unexpectedly.
[2150:120C][2016-07-06T14:21:31]i372: Session end, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{9b3936b0-e973-47b9-afb2-de7cd6501203}, resume: ARP, restart: None, disable resume: No
[2150:120C][2016-07-06T14:21:31]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{9b3936b0-e973-47b9-afb2-de7cd6501203}, resume: ARP, restart initiated: No, disable resume: No
[1ED8:0F9C][2016-07-06T14:21:31]i399: Apply complete, result: 0x80091007, restart: None, ba requested restart:  No

[jiangjinnan]

Same problem,

[mlorbetske]

TFS Bug#241374

[PaulRReynolds]

I got this to work by installing the specific .Net Core SDK first (DotNetCore.1.0.1-SDK.1.0.0.Preview2-003131-x64.exe), and then running the VS 2015 Preview 2 update. In the log, it looks like it fails looking for DotNetCLI_x64. See original log attached with failures.
dd_DotNetCoreTools__20160919141456.zip

[fenun]

Because you cannot download this file
URL: https://download.microsoft.com/download/A/3/8/A38489F3-9777-41DD-83F8-2CBDFAB2520C/packages/ancm_iis_express_x64_en_rc2_39.msi

Please make sure you check the ancm_iis_express_x64_en_rc2_39 from internet explorer not from any other browsers.

Then go for the installation of DotNetCore.1.0.0-VS2015Tools.Preview2. Things should start working.