C#•3y ago

❔ I am learning and I do not know what is wrong

I am following a brackeys tutorial and have only changed the text to be written.

WhiteBlackGoose•4/9/23, 6:19 PM

Do you have another .cs file by any chance?

WhiteBlackGoose•4/9/23, 6:19 PM

in the same folder

Samarichitane•4/9/23, 6:20 PM

Every project must have 1 only one entry point which is Main() method

Samarichitane•4/9/23, 6:21 PM

Looks like you have 1 more Main() method too

EvenEasy•4/9/23, 6:22 PM

u can try
string? username = Console.ReadLine();string? username = Console.ReadLine();

WWhiteBlackGoose Do you have another .cs file by any chance?

ERR404OP•4/9/23, 6:22 PM

I do

Pobiega•4/9/23, 6:23 PM

EERR404 I do

WhiteBlackGoose•4/9/23, 6:23 PM

that's the thing
when you run a project in C#, you don't run a .cs file
you run the whole thing
and the whole thing discovers all your .cs files

WhiteBlackGoose•4/9/23, 6:23 PM

and then it finds all Main() methods in your .cs files

WhiteBlackGoose•4/9/23, 6:23 PM

and tries to run them

WhiteBlackGoose•4/9/23, 6:23 PM

but beacuse you have more than one

WhiteBlackGoose•4/9/23, 6:23 PM

it doesn't know which one to run

ERR404OP•4/9/23, 6:24 PM

So what should I do to fix it?

WhiteBlackGoose•4/9/23, 6:24 PM

There are a few options

WhiteBlackGoose•4/9/23, 6:24 PM

one sec

WhiteBlackGoose•4/9/23, 6:25 PM

hmmm
yeah so you have three options

WhiteBlackGoose•4/9/23, 6:27 PM

You can create separate projects for each homework. (recommended)
You can specify the Main method that needs to be run. To do it, add```xml<StartupObject>Projects.Homework</StartupObject>```in your .csproj file. Make sure to specify the *class* and the *namespace*. E. g. if you decide to create another file and create class `Homework3`, you will need to replace that line with `Projects.Homework3`
You can use interactive environments, like VSC Notebooks, to play around C#. Then you don't need to create any projects at all

ERR404OP•4/9/23, 6:28 PM

What do you mean by separate projects? make more folders?

WhiteBlackGoose•4/9/23, 6:29 PM

no, more projects
project is a folder with

.csproj

.csproj

file

WhiteBlackGoose•4/9/23, 6:29 PM

to create a project, you type dotnet new console -n Homework5dotnet new console -n Homework5

Samarichitane•4/9/23, 6:30 PM

Solutions contains Projects

Samarichitane•4/9/23, 6:30 PM

Projects contains .cs files (with folders or not)

Samarichitane•4/9/23, 6:30 PM

1 Solution can contain more than 1 project

WhiteBlackGoose•4/9/23, 6:30 PM

eh, no need for solution here, just stay with projects

Samarichitane•4/9/23, 6:31 PM

If he just send us ss to project explorer on left side(or right) it would be better actually

ERR404OP•4/9/23, 6:32 PM

WhiteBlackGoose•4/9/23, 6:32 PM

assuming it's VSC, there's no project explorer

EERR404 Click to see attachment

WhiteBlackGoose•4/9/23, 6:32 PM

see, you have Projects.csproj

WhiteBlackGoose•4/9/23, 6:32 PM

it's one project

WhiteBlackGoose•4/9/23, 6:33 PM

you need another one

WhiteBlackGoose•4/9/23, 6:33 PM

oh I see you're typing

WhiteBlackGoose•4/9/23, 6:33 PM

you need to get one level up

WhiteBlackGoose•4/9/23, 6:33 PM

cd ..cd ..

WhiteBlackGoose•4/9/23, 6:33 PM

or create projects however you wish, just make sure not to nest them accidentally

ERR404OP•4/9/23, 6:34 PM

so hit enter on the command in the terminal and then I can copy paste what I have into that new file right?

WhiteBlackGoose•4/9/23, 6:35 PM

yes, but if you're in the same folder right now where your csproj is, then you will mess up things

WhiteBlackGoose•4/9/23, 6:35 PM

can you run "dir" where you are right now

WhiteBlackGoose•4/9/23, 6:35 PM

and show the output

WhiteBlackGoose•4/9/23, 6:35 PM

(since you're on VSC, I highly recommend learning some basics of terminal and dotnet CLI)

ERR404OP•4/9/23, 6:36 PM

WhiteBlackGoose•4/9/23, 6:36 PM

yeah

WhiteBlackGoose•4/9/23, 6:36 PM

give me a sec

WhiteBlackGoose•4/9/23, 6:37 PM

okay we need to clear up here a bit

WhiteBlackGoose•4/9/23, 6:38 PM

actually it's fine

WhiteBlackGoose•4/9/23, 6:38 PM

so do cd ..cd ..

WhiteBlackGoose•4/9/23, 6:38 PM

so that your prompt says "D:\Microsoft VS Code>"

WhiteBlackGoose•4/9/23, 6:39 PM

and run the command dotnet new console -n Homework2dotnet new console -n Homework2 there
then there will be a folder D:\Microsoft VS Code\Homework2D:\Microsoft VS Code\Homework2 containing your second homework

WhiteBlackGoose•4/9/23, 6:39 PM

if you want to keep them all in ProjectsProjects folder, you need to create Homework1 folder in Projects and move all stuff there

WhiteBlackGoose•4/9/23, 6:40 PM

(feel free to use graphical software like Explorer for manipulating with files if you don't feel comfortable with terminal)

ERR404OP•4/9/23, 6:41 PM

so I need to do that for every new project correct?

❔ I am learning and I do not know what is wrong

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