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  • Mangirish Wagle 34 posts 106 karma points
    Mar 13, 2019 @ 11:42
    Mangirish Wagle
    0

    Server Error after installing Umbraco 8.0.0

    Hello All,

    I tried to install Umbraco 8.0.0 on local machine using Package Manager Console on Visual Studio 2015 and .NET Framework 4.6.1. I ran the project after build, and after that, I encountered this error.

    Server Error in '/' Application

    Please help, ASAP.

  • Kevin Jump 2114 posts 13360 karma points MVP 5x c-trib
    Mar 13, 2019 @ 11:54
    Kevin Jump
    2

    Hi

    Umbraco 8 requires Visual Studio 2017 (v 15.9.6 or later) and .net 4.7.2

    https://our.umbraco.com/documentation/Getting-Started/Setup/Requirements/#local-development

    I think the errors you are seeing relate to that.

    Kevin

  • Mangirish Wagle 34 posts 106 karma points
    Mar 13, 2019 @ 12:06
    Mangirish Wagle
    0

    Thanks a lot, Kevin. Sad to know that, it's incompatible with Visual Studio 2015 and .NET 4.6.1.

  • Søren Gregersen 436 posts 1874 karma points MVP 2x c-trib
    Mar 13, 2019 @ 16:08
    Søren Gregersen
    0

    It would be even sadder if it was IMHO :-)

    Vs2017 is being replaced by vs2019 next month, .Net Framework 4.8 will (most likely) be the last version of the .Net framework before it’s just .Net Core.

    I welcome this move alot :-)

  • Bahadur 7 posts 78 karma points
    Oct 23, 2019 @ 20:34
    Bahadur
    0

    Just wanna add that you if you're facing this error even after getting all the version compatibility right, do this:

    Step 1 : Go into the web.config and look for this section:

    <system.codedom>
    <compilers>
        <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
        <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
    </compilers>
    

    Step 2 : Go into the packages.config and look for this line:

    <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="2.0.1" targetFramework="net452" />
    

    Step 3 : Update the version number in the web.config file to match the version in the line of the packages.config file.

    <system.codedom>
    <compilers>
        <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" />
        <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
    </compilers>
    

    That should fix it. Failing the above you could just run this command in the Package Manager Console:

    Update-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform -r
    

    For additional information on V8 dependencies:

    https://www.nuget.org/packages/UmbracoCms/8.0.0

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