VSCode - adding c# assembly reference

Question

Getting the following error:

The name 'File' does not exist in the current context[dnxcore50]

Tried to build it in-case it was to do with VSCode alone. It threw me same error. I have installed the dependency using the following:

dnu install System.IO

Gave me the following message

c:\Users\user1\Dropbox\dev\csharp\vscode\ads\WeightedGraphs>dnu install System.IO GET https://www.nuget.org/api/v2/FindPackagesById()?Id='System.IO'. OK https://www.nuget.org/api/v2/FindPackagesById()?Id='System.IO' 679ms System.IO.4.0.10-beta-22816 was added to project.json. Restoring packages for c:\Users\user1\Dropbox\dev\csharp\vscode\ads\WeightedGraphs\project.json Writing lock file c:\Users\user1\Dropbox\dev\csharp\vscode\ads\WeightedGraphs\project.lock.json Restore complete, 302ms elapsed

project.json

{
    "version": "1.0.0-*",
    "dependencies": {
        "System.IO": "4.0.10-beta-22816"
    },
    "commands": {
        "run": "run"
    },
    "frameworks": {
        "dnx451": {},
        "dnxcore50": {
            "dependencies": {
                "System.Collections": "4.0.10-beta-22816",
                "System.Linq": "4.0.0-beta-22816",
                "System.Console": "4.0.0-beta-22816"
            }
        }
    }
}

In.cs

using System.IO;
public class In{
    public In(string s){
        var filename = s;
        var path = "";
        if(File.Exists(path)){  
            //Code TO Be Added
        }
    }
}

natemcmaster · Accepted Answer · 2015-06-06 00:26:01Z

1

You also need to add "System.IO.FileSystem" to your dependencies.

answered Jun 6, 2015 at 0:26

natemcmaster

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3 Comments

rthota50 Over a year ago

thank you, that fixed the problem. How ever curiour, how should i know

rthota50 Over a year ago

looking into docs(msdn.microsoft.com/en-us/library/…), does not give me that info, neither do I add that dependency when i use Visual Studio.

natemcmaster Over a year ago

Yes, this is one of the oddities of .NET Core. As .NET Core is still a work in progress and much of its documentation has not been written yet. (dotnet.readthedocs.org/en/latest)

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