c# - How to reference System.DirectoryServices assemblies using Visual Studio Code? -

i reference system.directoryservices in asp.net web application. follow tutorial on active directories (https://msdn.microsoft.com/en-us/library/ms180890(v=vs.90).aspx) having issue adding reference system.directoryservices.dll. think should adding project.json various issues adding dependency appropriate location. project.json follows.

{   "usersecretsid": "aspnet-formsauthad-b19f2b08-0c89-4f46-af20-dc7b20b2226d",    "dependencies": {     "microsoft.netcore.app": {       "version": "1.0.0",       "type": "platform"     },     "microsoft.aspnetcore.authentication.cookies": "1.0.0",     "microsoft.aspnetcore.diagnostics": "1.0.0",     "microsoft.aspnetcore.diagnostics.entityframeworkcore": "1.0.0",     "microsoft.aspnetcore.identity.entityframeworkcore": "1.0.0",     "microsoft.aspnetcore.mvc": "1.0.0",     "microsoft.aspnetcore.razor.tools": {       "version": "1.0.0-preview2-final",       "type": "build"     },     "microsoft.aspnetcore.server.iisintegration": "1.0.0",     "microsoft.aspnetcore.server.kestrel": "1.0.0",     "microsoft.aspnetcore.staticfiles": "1.0.0",     "microsoft.entityframeworkcore.sqlite": "1.0.0",     "microsoft.entityframeworkcore.sqlite.design": {       "version": "1.0.0",       "type": "build"     },     "microsoft.entityframeworkcore.tools": {       "version": "1.0.0-preview2-final",       "type": "build"     },     "microsoft.extensions.configuration.environmentvariables": "1.0.0",     "microsoft.extensions.configuration.json": "1.0.0",     "microsoft.extensions.configuration.commandline": "1.0.0",     "microsoft.extensions.configuration.usersecrets": "1.0.0",     "microsoft.extensions.logging": "1.0.0",     "microsoft.extensions.logging.console": "1.0.0",     "microsoft.extensions.logging.debug": "1.0.0",     "microsoft.extensions.options.configurationextensions": "1.0.0",     "microsoft.visualstudio.web.browserlink.loader": "14.0.0",     "microsoft.visualstudio.web.codegeneration.tools": {       "version": "1.0.0-preview2-final",       "type": "build"     },     "microsoft.visualstudio.web.codegenerators.mvc": {       "version": "1.0.0-preview2-final",       "type": "build"     }   },    "tools": {     "bundlerminifier.core": "2.0.238",     "microsoft.aspnetcore.razor.tools": "1.0.0-preview2-final",     "microsoft.aspnetcore.server.iisintegration.tools": "1.0.0-preview2-final",     "microsoft.entityframeworkcore.tools": "1.0.0-preview2-final",     "microsoft.extensions.secretmanager.tools": "1.0.0-preview2-final",     "microsoft.visualstudio.web.codegeneration.tools": {       "version": "1.0.0-preview2-final",       "imports": [         "portable-net45+win8"       ]     }   },    "frameworks": {     "netcoreapp1.0": {       "imports": [         "dotnet5.6",         "portable-net45+win8"       ]     }   },    "buildoptions": {     "emitentrypoint": true,     "preservecompilationcontext": true   },    "runtimeoptions": {     "configproperties": {       "system.gc.server": true     }   },    "publishoptions": {     "include": [       "wwwroot",       "views",       "areas/**/views",       "appsettings.json",       "web.config"     ]   },    "scripts": {     "precompile": [ "dotnet bundle" ],     "prepublish": [ "bower install" ],     "postpublish": [ "dotnet publish-iis --publish-folder %publish:outputpath% --framework %publish:fulltargetframework%" ]   },    "tooling": {     "defaultnamespace": "formsauthad"   } } 

where , how should add system.directoryservices dependency project.json?

you use frameworkassemblies section in project.json framework targeting. example:

"frameworks": {     "net462": {         "frameworkassemblies": {             "system.directoryservices": {                 "type": "build",                 "version": "4.0.0"             }         }     } } 

keep in mind doing this, referencing assembly in gac full .net framework. means project not run on .net core anymore , run on windows. system.directoryservices not support .net core yet.