asp.net core - Unable to load libuv in windows server 2012 r2? -

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in visual studio code, issue dnx kestrel in command line palette. encountering error this

info    : [microsoft.framework.dependencyinjection.dataprotectionservices] user profile available. using 'c:\users\myaccount\appdata\local\asp.net\dataprot ection-keys' key repository , windows dpapi encrypt keys @ rest. system.invalidoperationexception: unable load libuv.    @ microsoft.aspnet.server.kestrel.networking.libuv.load(string dlltoload)    @ microsoft.aspnet.server.kestrel.kestrelengine..ctor(ilibrarymanager librar ymanager, iapplicationshutdown appshutdownservice)    @ microsoft.aspnet.server.kestrel.serverfactory.start(iserverinformation ser verinformation, func`2 application)    @ microsoft.aspnet.hosting.internal.hostingengine.start()    @ microsoft.aspnet.hosting.program.main(string[] args) --- end of stack trace previous location exception thrown ---    @ system.runtime.exceptionservices.exceptiondispatchinfo.throw()    @ microsoft.dnx.runtime.common.entrypointexecutor.execute(assembly assembly,  string[] args, iserviceprovider serviceprovider)    @ microsoft.dnx.applicationhost.program.executemain(defaulthost host, string  applicationname, string[] args)    @ microsoft.dnx.applicationhost.program.main(string[] args) --- end of stack trace previous location exception thrown ---    @ system.runtime.exceptionservices.exceptiondispatchinfo.throw()    @ microsoft.dnx.runtime.common.entrypointexecutor.execute(assembly assembly,  string[] args, iserviceprovider serviceprovider)    @ microsoft.dnx.host.bootstrapper.runasync(list`1 args, iruntimeenvironment env, frameworkname targetframework)    @ microsoft.dnx.host.runtimebootstrapper.executeasync(string[] args, framewo rkname targetframework)    @ microsoft.dnx.host.runtimebootstrapper.execute(string[] args, frameworknam e targetframework) press key continue . . .

how fix this? thanks.

kestrel use libuv asynchronous i/o library. so, install use kestrel web server, or use dnx web launch app, web command in project.json.

"commands": { "kestrel": "microsoft.aspnet.hosting --server microsoft.aspnet.server.kestrel --config hosting.ini", "web": "microsoft.aspnet.hosting --server microsoft.aspnet.server.weblistener --config hosting.ini"}

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