Hi Delly

What approach did you take when you made the installation? Did you install using visual studio and nuget, or did you use webmatrix or was it done manually?

And are you using CE SQL, MSSQL or MySQL as the database?

Perhaps you need to upgrade some frameworks in order to be able to run Umbraco.

Looking forward to hearing from you.

/Jan

Hi Jan,

I was install umbraco manually, but I can't access the installation page because of that error.

I am working with .net 4.5.1 framework and asp.net 4.0

Which one framework is that I have to upgrade?

Thanks
Delly 

Hi Delly

Did you follow the installation instructions found here? http://our.umbraco.org/documentation/Installation/install-umbraco-manually

Did you remember to unblock the zip file before unzipping?

I find that the easiest way to figure out if all dependencies are in place so Umbraco can run is to initially do an Umbraco installation using webmatrix http://our.umbraco.org/documentation/Installation/install-umbraco-with-microsoft-webmatrix since webmatrix makes sure that all neccesary dependencies are in place before Umbraco is installed. So perhaps try doing an installation this way first.

I hope this helps.

/Jan

Hi,

I'm facing the same issue installing 7.2-beta (manual installation):

Could not load file or assembly 'System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

I have version 7.1.8 running on the same system (Windows Server 2008) smoothly, also using a manual installation.

Regarding Jan's suggestion to use WebMatrix, correct me if I'm wrong, but using WebMatrix currently version 7.1.6 is installed, right?

Ron 

Hi Ron and welcome to our :)

Yes, installing using WebMatrix is currently installing Umbraco 7.1.6 - Unfortunately the guys at Umbraco HQ have no control over when the feed is updated by Microsoft to choose the latest version of Umbraco.

But my point with suggesting using WebMatrix was only to ensure that all the needed dependencies are installed so dependency issues can be ruled out.

Once done this way you can just download and install Umbraco manually afterwards.

Hope this clarifies things.

/Jan

Hi Sebastiaan,

I just found out these files were missing... :) I copied the missing files from my 7.1.8 installation and the 7.2-beta installation went just fine.

Thanks for your response and providing the files!

Ron

Hi Sebastiaan,

Finally I can install umbraco 7.2. Can't wait for the next release.

Thanks for the solution and providing the files

Delly

I was just wondering about this too as I could run the beta local, but not on the host server (in this case UnoEuro) as the System.Web.Http assembly was missing, but included in previously nightly builds :)

Thanks @Sebastiaan ..

/Bjarne

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