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POException raised when I'm trying enable migrations in EF 4.3.1
 

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  1. POException raised when I'm trying enable migrations in EF 4.3.1
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    <p>I'm using Entity framework 4.3.1 installed by nuget in my .Net 4.0 class library project. In situation, when I call the "Enable-Migrations" command in PM console, I receive following exception:</p> <blockquote> <p>Exception calling "LoadFrom" with "1" argument(s): "Nelze načíst soubor nebo sestavení file:///D:\ Users\DvoracekR\Documents\Visual Studio 2010\Projects\WebCameras\packages\EntityFramework.4.3.1\to ols\EntityFramework.PowerShell.Utility.dll nebo jeden z jejich závislých prvků. Systém nemůže nalé zt uvedený soubor." At D:\Users\DvoracekR\Documents\Visual Studio 2010\Projects\WebCameras\packages\EntityFramework.5. 0.0-rc\tools\EntityFramework.psm1:393 char:62 + $utilityAssembly = [System.Reflection.Assembly]::LoadFrom &lt;&lt;&lt;&lt; ((Join-Path $toolsPath Entity Framework.PowerShell.Utility.dll)) + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException</p> <p>You cannot call a method on a null-valued expression. At D:\Users\DvoracekR\Documents\Visual Studio 2010\Projects\WebCameras\packages\EntityFramework.5. 0.0-rc\tools\EntityFramework.psm1:394 char:50 + $dispatcher = $utilityAssembly.CreateInstance &lt;&lt;&lt;&lt; ( + CategoryInfo : InvalidOperation: (CreateInstance:String) [], RuntimeException + FullyQualifiedErrorId : InvokeMethodOnNull</p> <p>Exception calling "CreateInstanceFrom" with "8" argument(s): "Typ System.Data.Entity.Migrations.En ableMigrationsCommand ze sestavení EntityFramework.PowerShell, Version=4.3.1.0, Culture=neutral, P ublicKeyToken=b77a5c561934e089 nelze načíst." At D:\Users\DvoracekR\Documents\Visual Studio 2010\Projects\WebCameras\packages\EntityFramework.5. 0.0-rc\tools\EntityFramework.psm1:418 char:31>+ $domain.CreateInstanceFrom &lt;&lt;&lt;&lt; ( + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException</p> </blockquote>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USRudolf Dvoracek
    1. USRudolf Dvoracek
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    2. PO
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      1. PTAnswer
    3. PO
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      1. PTAnswer
    1. VO
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. This table or related slice is empty.
      1. VTUpMod
    1. COIf you want to get answer here avoid localized versions of .NET framework - questions with information in local language are usually closed as too localized. Your error message contains some contradicting information - it tries to load EF 4.3.1 PowerShell extension from EF 5.0 RC directory. So what version are you using?
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. USLadislav Mrnka
    2. COI'm using version 4.3.1. I also tried to uninstall Entity Framework using NuGet and install it again. Nothing changed. Enable-Migrations command is still trying load non existing assembly. Should I try to install latest pre-release version?
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. USRudolf Dvoracek
    3. COWhat do you see in packages.config and in Packages directory?
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      1. POException raised when I'm trying enable migrations in EF 4.3.1
      1. USLadislav Mrnka
 

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