Perforce P4 .NET API returns Perforce Password (P4PASSWD) invalid

Question

I'm writing a VS C# app using the p4api.net to access a P4 server. The P4V app accesses the depository fine with a given user/password. Using p4api.net API, the code executed the Connect() & Login() methods without exception using server/user/password strings passed in from a form:

  rep.Connection.Connect(options);
  rep.Connection.Login(password, options);

Below is the actual code:

String conStr = mServerConnection.Text;
String user = mUserText.Text;
String password = mPaswordTxt.Text;
try
{
   Server server = new Server(new ServerAddress(conStr));
   rep = new Repository(server);
   rep.Connection.UserName = user;
   Options options = new Options();
   Options["Password"] = password;
   rep.Connection.Client = new Client();
   rep.Connection.Connect(options);
   rep.Connection.Login(password, options);
}
catch (Exception ex)
{
   rep = null;
   MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}

However during another call to access the P4 "//depot" root directory, the API call _repository.GetDepotDirs() would return "Perforce Password (P4PASSWD) invalid or unset" exception. Please see code below:

public bool Expand()
{
  if (String.IsNullOrEmpty(depotPath))
     return false;
  // if we have the depot path, get a list of the subdirectories from the depot
  if (!String.IsNullOrEmpty(depotPath))
  {
     IList<string> subdirs = _repository.GetDepotDirs(null, String.Format("{0}/*", depotPath));

I read somewhere that I need to set the environmental variable P4TICKETS so I did that in a DOS prompt:

p4 set P4TICKETS=C:\Documents and Settings\my_user_name

but this didn't resolve the problem. I'd appreciate your help. Thanks.

randy-wandisco randy-wandisco · Accepted Answer · 2012-01-08T03:52:14

At security level 3, giving the password directly to Connect doesn't work. So I catch the subsequent exception and then call Login. At that point you can save the Credential.Ticket returned by Login for future calls to Connect, under the Ticket field in the options.

I'm not sure why the subsequent command calls are failing for you, unless your ticket somehow expires, or you've actually disconnected from the server. You can always call Connect again before subsequent commands.

Perforce P4 .NET API returns Perforce Password (P4PASSWD) invalid

1 Answers