ef core don´t use ASPNETCORE_ENVIRONMENT during update-database

Question

I use visual studio to update all my environments with a certain migration. It had worked fine using the command below.

update-database -Migration initMigrat         


        

Answer 1

I had the same problem like the reporter of this issue and tried out the recent solution in the Package Manager Console (PMC) and set the environment variable with the command:

$env:ASPNETCORE_ENVIRONMENT='YOUR_ENVIRONMENT'

Unfortunetly I have a ConsoleApplication and use the generic host builder on startup with Host.CreateDefaultBuilder(). In this scenario the environment variable prefix is not ASPNETCORE_ but DOTNET_.

For me this command works in PMC:

$env:DOTNET_ENVIRONMENT='YOUR_ENVIRONMENT'

I want to thank Martin Florin and others to guide me in the correct direction.

Answer 2

According to EntityFrameworkCore#6846 the correct solution is to use the --environment option, the dotnet ef commands do not respect ASPNETCORE_ENVIRONMENT

dotnet ef database update --environment Production

Answer 3

To set the ASPNETCORE_ENVIRONMENT variable in Package Manager Console (PMC) , inside visual studio, to Production use this command first

$env:ASPNETCORE_ENVIRONMENT='Production'

Then you can use

Update-Database

normally.

Answer 4

Using the package manager in Visual Studio was a dead end for me. The solution was:

1. Add below in .csproj in the starter project in solution:

   <ItemGroup>
       <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
   </ItemGroup>
   

2. Open the command tool(cmd) and go the the same folder as .csproj for start project are located(Default project).

3. Run the command as Anton Toshik suggested set ASPNETCORE_ENVIRONMENT=Production

4.Then run the command dotnet ef database update initMigrationProduct -c ProductContext And now it works.

REMARK: in this command database and update have changed place since earlier versions. And there are no argument/code for migration. The docs explain more after this clarification:
https://docs.microsoft.com/en-us/ef/core/miscellaneous/cli/dotnet