怎么用C#调用Powershell 向另外一台机器写txt文件

[执迷的信徒]

大家好，我手上有个用powershell向远程机器写一个txt文件的脚本报错如下：
Test method BaiduTest.TestBaidu.BaiduTest1 threw exception:
System.Management.Automation.Remoting.PSRemotingTransportException: Connecting to remote server failed with the following error message : Access is denied. For more information, see the about_Remote_Troubleshooting Help topic.

原脚本如下：

SecureString secureString = new SecureString();
String password="password";
foreach (char pwd in password.ToCharArray())
{
secureString.AppendChar(pwd);
}

PSCredential psc = new PSCredential("server01", secureString);

Collection<PSObject> retVals = new Collection<PSObject>();

string sessionURI = string.Format("http://{0}:5985/wsman", "computername");
WSManConnectionInfo session = new WSManConnectionInfo(new Uri(sessionURI), "http://schemas.microsoft.com/powershell/Microsoft.PowerShell", psc);

session.AuthenticationMechanism = AuthenticationMechanism.Default;
session.ProxyAuthentication = AuthenticationMechanism.Negotiate;
session.SkipCACheck = true;
session.SkipCNCheck = true;


Runspace runspace = RunspaceFactory.CreateRunspace(session);

runspace.Open();

PowerShell ps = PowerShell.Create();
ps.Runspace = runspace;

ps.AddScript("new-item -path c:\\lqm\\temp\\ -name test8.txt -type file -force");


还求高手帮忙解决啊！