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Webmatrix Gallery Error

Topics: Installing Orchard, Troubleshooting
Jan 13, 2012 at 12:56 AM

I've started several Orchard sites from Webmatrix Web Gallery, but then suddenly it stopped working.  I can't use that capability to make any further sites (and yes, this is all on the same computer, on the same network).  After I accept the EULA, I'm told:

This product did not install successfully: Downloaded file failed signature verification and may have been tampered with.

I've searched for this problem, and found that many other people have had it (with Wordpress and other items).  The solution I've seen posted elsewhere is to open web platfrom installer, select 'options', and clear the download cache.  I did that step, and then restarted webmatrix - but it did not solve the problem.

The installer log given by webmatrix is this:

DownloadManager Information: 0 : Adding product 'OrchardCMS' to the cart
DownloadManager Information: 0 : Starting install sequence
DownloadManager Information: 0 : Downloading file '' to: C:\Users\barias\AppData\Local\Temp\tmp5FC4.tmp
DownloadManager Information: 0 : responded with 302
DownloadManager Information: 0 : Response headers:
HTTP/1.1 302 Found
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Fri, 13 Jan 2012 00:52:10 GMT
Content-Length: 171

DownloadManager Information: 0 : Content-disposition header: attachment; filename=""
DownloadManager Information: 0 : Moving downloaded file 'C:\Users\barias\AppData\Local\Temp\tmp5FC4.tmp' to: C:\Users\barias\AppData\Local\Microsoft\Web Platform Installer\installers\OrchardCMS\A38ECD4417C67445C77DD8F0D25052B1F4229986\
DownloadManager Error: 0 : Signature verification failed on downloaded file. URL: File location: C:\Users\barias\AppData\Local\Microsoft\Web Platform Installer\installers\OrchardCMS\A38ECD4417C67445C77DD8F0D25052B1F4229986\ File size: 11771 kb

Jan 18, 2012 at 6:37 AM

Clear your IE cache.

Jan 18, 2012 at 5:57 PM

That worked!