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c# - 无法加载文件或程序集工具\EntityFramework .PowerShell.Utility.dll'

转载 作者:行者123 更新时间:2023-12-03 15:18:35 27 4
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尝试从包管理器控制台安装 Entity Framework 6.1.3 时。
我得到以下输出。

Install-Package EntityFramework 
Attempting to gather dependency information for package 'EntityFramework.6.1.3' with respect to project 'OnlineShop', targeting '.NETFramework,Version=v4.6.1'
Attempting to resolve dependencies for package 'EntityFramework.6.1.3' with DependencyBehavior 'Lowest'
Resolving actions to install package 'EntityFramework.6.1.3'
Resolved actions to install package 'EntityFramework.6.1.3'
Adding package 'EntityFramework.6.1.3' to folder 'D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages'
Added package 'EntityFramework.6.1.3' to folder 'D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages'
Added package 'EntityFramework.6.1.3' to 'packages.config'
Executing script file 'D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\EntityFramework.6.1.3\tools\install.ps1'
Exception calling "LoadFrom" with "1" argument(s): "Could not load file or asse
mbly 'file:///D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop
\packages\EntityFramework.6.1.3\tools\EntityFramework.PowerShell.Utility.dll' o
r one of its dependencies. The system cannot find the file specified."
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:780 char:5
+ $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-Path $Too
lsP ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException

You cannot call a method on a null-valued expression.
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:781 char:5
+ $dispatcher = $utilityAssembly.CreateInstance(
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling "CreateInstanceFrom" with "8" argument(s): "Could not load fi
le or assembly 'file:///D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\
OnlineShop\packages\EntityFramework.6.1.3\tools\EntityFramework.PowerShell.dll'
or one of its dependencies. The system cannot find the file specified."
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:809 char:5
+ $domain.CreateInstanceFrom(
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException

Exception calling "LoadFrom" with "1" argument(s): "Could not load file or asse
mbly 'file:///D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop
\packages\EntityFramework.6.1.3\tools\EntityFramework.PowerShell.Utility.dll' o
r one of its dependencies. The system cannot find the file specified."
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:780 char:5
+ $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-Path $Too
lsP ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException

You cannot call a method on a null-valued expression.
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:781 char:5
+ $dispatcher = $utilityAssembly.CreateInstance(
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling "CreateInstanceFrom" with "8" argument(s): "Could not load fi
le or assembly 'file:///D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\
OnlineShop\packages\EntityFramework.6.1.3\tools\EntityFramework.PowerShell.dll'
or one of its dependencies. The system cannot find the file specified."
At D:\Leva\Work\Informatika\CSharp\My OPENSOURCE projects\OnlineShop\packages\E
ntityFramework.6.1.3\tools\EntityFramework.psm1:809 char:5
+ $domain.CreateInstanceFrom(
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : FileNotFoundException


Type 'get-help EntityFramework' to see all available Entity Framework commands.
Successfully installed 'EntityFramework 6.1.3' to OnlineShop

如您所见,存在异常。但毕竟,Entity Framework 6.1.3 已成功添加到项目中,尽管存在异常。此外,当我添加对 System.Data.Entity 的引用并尝试在代码中使用它时。我无法连接到 System.Data.Entity 命名空间并使用此命名空间的库。它是否以某种方式连接到上述异常,以及如何解决这个问题?

最佳答案

使用 EntityFramework6\Add-Migration 命令,微软已经更改了 cmdmidlet 的名称

关于c# - 无法加载文件或程序集工具\EntityFramework .PowerShell.Utility.dll',我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38268979/

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