Traying to add-migration in visual studio but its not working

Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly 
'file:///G:\MyBrand1\BrandHouse\packages\EntityFramework.6.4.4\tools\EntityFramework.PowerShell.Utility.dll' or one of its dependencies. The system cannot find the 
file specified."
At G:\MyBrand1\BrandHouse\packages\EntityFramework.6.2.0\tools\EntityFramework.psm1:782 char:5
+     $utilityAssembly = [System.Reflection.Assembly]::LoadFrom((Join-P ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : FileNotFoundException
 
You cannot call a method on a null-valued expression.
At G:\MyBrand1\BrandHouse\packages\EntityFramework.6.2.0\tools\EntityFramework.psm1:783 char:5
+     $dispatcher = $utilityAssembly.CreateInstance(
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Exception calling "CreateInstanceFrom" with "8" argument(s): "Could not load file or assembly 
'file:///G:\MyBrand1\BrandHouse\packages\EntityFramework.6.4.4\tools\EntityFramework.PowerShell.dll' or one of its dependencies. The system cannot find the file 
specified."
At G:\MyBrand1\BrandHouse\packages\EntityFramework.6.2.0\tools\EntityFramework.psm1:811 char:5
+     $domain.CreateInstanceFrom(
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : FileNotFoundException

Add-Migration InitialCreate
Add-Migration ImageURL
Add-Migration ImageURL_add-Verbose