When creating a project with dotnet cli
/ em>dotnet new razor -o RazorPagesContacts
How do I change the environment variable to developer mode when running the application using dotnet run .
Since no Startup.cs I have
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Error");
}
And never enter app.UseDeveloperExceptionPage() using dotnet run
To work with different .NET Core environments, you must assign the environment name to the variable ASPNETCORE_ENVIRONMENT
Command Prompt
set ASPNETCORE_ENVIRONMENT=Development
Powershell
$Env:ASPNETCORE_ENVIRONMENT = "Development"
Note that changes to the environment variable through the Command Line or PowerShell will only be available until the window is closed.
To assign the value of this environment variable globally, you must assign the value to the Windows Environment Variables.
Access Control Panel > System > Advanced System Settings
Click Environment Variables
Formoreinformation,visit Working with Multiple Environments
You need to assign the "Development" value to the ASPNETCORE_ENVIROMENT environment variable. Before running "dotnet run" run the command below:
CMD Console
setx ASPNETCORE_ENVIRONMENT "Development"
PowerShell
$Env:ASPNETCORE_ENVIRONMENT = "Development"
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