Buyaa Namnan

@vbukhari-twn we need more info like what exception you are seeing in the backend, what tool/framework you are using etc., the front end error you provided could be just issue...

CC @Pilchie

@jabedkhanjb looks you haven't installed the SDK (Software Development Kit), go back to the [Download and install](https://dotnet.microsoft.com/en-us/learn/dotnet/hello-world-tutorial/install) step and install it first before running any command

@mattgen88 your problem doesn't seem related to this issue, because the issue found in Windows, please file a separate issue for your case with more details

@Essien-SM please download and install .NET SDK by clicking on the `Download .NET 6 SDK` button first in case you haven't don that already. If you already have installed the...

CC @Pilchie

@krolu please specify which doc page are you referring to, else we could not answer your question

Thank you @colejohnson66 for answering the question @krolu agree, feel free to offer a fix

@hexagonius it might be helpful if you attach the link to the page in question

Basically, having a default value sets the [Optional](https://learn.microsoft.com/dotnet/api/system.reflection.parameterattributes?#system-reflection-parameterattributes-optional) attribute for the parameter. Though one can set it using `[Optional]` attribute even without default value. Also, it can be set with...