Update-database result in an error

[Naif]

Hi,
I’ve tried to run the migration update command but I got this error, could you help, please?

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Exception calling “LoadFrom” with “1” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.Utility.dll’ or one of its dependencies. Operation is not
supported. (Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:780 char:5

• $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-P ...
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

You cannot call a method on a null-valued expression.
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:781 char:5

• $dispatcher = $utilityAssembly.CreateInstance(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: ( [], RuntimeException
  • FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling “CreateInstanceFrom” with “8” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.dll’ or one of its dependencies. Operation is not supported.
(Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:809 char:5

• $domain.CreateInstanceFrom(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

PM> Add-Migration InitialModel -force
Exception calling “LoadFrom” with “1” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.Utility.dll’ or one of its dependencies. Operation is not
supported. (Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:780 char:5

• $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-P ...
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

You cannot call a method on a null-valued expression.
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:781 char:5

• $dispatcher = $utilityAssembly.CreateInstance(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: ( [], RuntimeException
  • FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling “CreateInstanceFrom” with “8” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.dll’ or one of its dependencies. Operation is not supported.
(Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:809 char:5

• $domain.CreateInstanceFrom(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

PM> Update-Database
Exception calling “LoadFrom” with “1” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.Utility.dll’ or one of its dependencies. Operation is not
supported. (Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:780 char:5

• $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-P ...
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

You cannot call a method on a null-valued expression.
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:781 char:5

• $dispatcher = $utilityAssembly.CreateInstance(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : InvalidOperation: ( [], RuntimeException
  • FullyQualifiedErrorId : InvokeMethodOnNull

Exception calling “CreateInstanceFrom” with “8” argument(s): “Could not load file or assembly
‘file:///D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.PowerShell.dll’ or one of its dependencies. Operation is not supported.
(Exception from HRESULT: 0x80131515)”
At D:\Projects\Examples\PlutoWeb\packages\EntityFramework.6.1.1\tools\EntityFramework.psm1:809 char:5

• $domain.CreateInstanceFrom(
  

• ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  

  • CategoryInfo : NotSpecified: ( [], MethodInvocationException
  • FullyQualifiedErrorId : FileLoadException

PM