问题
I am I am having a problem installing a ClickOnce vb.net windows forms application. I have tried few solutions suggested here on this site and none have helped.
My application is built with VS2010(.NET 4.0 Framework) and is deployed to a local folder C:\inetpub\wwwroot\AppName on my dev machine but I have specified the following address as the install address https://localhost/AppName/
I am getting following error when I hit "Run" button in IE. "Warn if changing between secure to non secure mode" is unchecked in IE. Any help with this will be greatly appreciated. Complete error message can be seen below.
The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [InstallMode] = HomeSite {string}
Property: [ProcessorArchitecture] = AMD64 {string}
Property: [VersionNT] = 6.1.1 {version}
Running checks for package 'Microsoft .NET Framework 4 (x86 and x64)', phase BuildList
Reading value 'Version' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v4\Full'
Read string value '4.5.51209'
Setting value '4.5.51209 {string}' for property 'DotNet40Full_TargetVersion'
The following properties have been set for package 'Microsoft .NET Framework 4 (x86 and x64)':
Property: [DotNet40Full_TargetVersion] = 4.5.51209 {string}
Running checks for command 'DotNetFX40\dotNetFx40_Full_x86_x64.exe'
Result of running operator 'ValueEqualTo' on property 'InstallMode' and value 'HomeSite': true
Result of checks for command 'DotNetFX40\dotNetFx40_Full_x86_x64.exe' is 'Bypass'
Running checks for command 'DotNetFX40\dotNetFx40_Full_setup.exe'
Result of running operator 'ValueNotEqualTo' on property 'InstallMode' and value 'HomeSite': false
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'DotNet40Full_TargetVersion' and value '4.0.30129': true
Result of checks for command 'DotNetFX40\dotNetFx40_Full_setup.exe' is 'Bypass'
'Microsoft .NET Framework 4 (x86 and x64)' RunCheck result: No Install Needed
Running checks for package 'Microsoft .NET Framework 4 Client Profile (x86 and x64)', phase BuildList
Reading value 'Version' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v4\Client'
Read string value '4.5.51209'
Setting value '4.5.51209 {string}' for property 'DotNet40Client_TargetVersion'
The following properties have been set for package 'Microsoft .NET Framework 4 Client Profile (x86 and x64)':
Property: [DotNet40Client_TargetVersion] = 4.5.51209 {string}
Running checks for command 'DotNetFX40Client\dotNetFx40_Client_x86_x64.exe'
Result of running operator 'ValueEqualTo' on property 'InstallMode' and value 'HomeSite': true
Result of checks for command 'DotNetFX40Client\dotNetFx40_Client_x86_x64.exe' is 'Bypass'
Running checks for command 'DotNetFX40Client\dotNetFx40_Client_setup.exe'
Result of running operator 'ValueNotEqualTo' on property 'InstallMode' and value 'HomeSite': false
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'DotNet40Client_TargetVersion' and value '4.0.30129': true
Result of checks for command 'DotNetFX40Client\dotNetFx40_Client_setup.exe' is 'Bypass'
'Microsoft .NET Framework 4 Client Profile (x86 and x64)' RunCheck result: No Install Needed
Launching Application.
URLDownloadToCacheFile failed with HRESULT '-2146697210'
Error: An error occurred trying to download 'http://MachineName:90/publish.htm/AssemblyName.application'
回答1:
On our systems, when running setup.exe, if the codebase URL in deploymentProvider was set to http, it worked, but https failed with URLDownloadToCacheFile failed with HRESULT '-2146697208'. However, the ourapp.application file would be downloaded.
It turns out that SSL caching was disabled, the following registry change fixed the issue.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"DisableCachingOfSSLPages"=dword:00000000
回答2:
I received the same error while deploying to a client system. After several different attempts with different URLs and settings, I attempted to install on my development system and was successful. I then concluded: "If there is no other logical explanation, reboot the system". I was then successful installing the same version that installed on my development system on the client's.
Client system OS: Windows 10.
来源：https://stackoverflow.com/questions/43451496/urldownloadtocachefile-failed-with-hresult-2146697208