"sudo port upgrade outdated" fails

[jhi]

$ sudo port upgrade outdated   
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
$

And ... that's it.

According to "selfupdate" I'm not completely broken.

$ sudo port selfupdate
Password:
--->  Updating MacPorts base sources using rsync
MacPorts base version 2.4.2 installed,
MacPorts base version 2.4.2 downloaded.
--->  Updating the ports tree
--->  MacPorts base is already the latest version

The ports tree has been updated. To upgrade your installed ports, you should run
  port upgrade outdated

OS:

$ sw_vers 
ProductName:	Mac OS X
ProductVersion:	10.13.2
BuildVersion:	17C88

[ryandesign (Ryan Carsten Schmidt)]

Replying to jhi:

$ sudo port upgrade outdated   
Error: Follow https://guide.macports.org/#project.tickets to report a bug.
$

And ... that's it.

That could happen if there is a circular dependency in your outdated ports. MacPorts doesn't support circular dependencies, but sometimes they are accidentally introduced into the ports tree.

What are your outdated ports?

port outdated

[ryandesign (Ryan Carsten Schmidt)]

Closing due to lack of response. Hopefully we fixed the circular dependency somewhere along the way. If not, please reopen the ticket and provide the output I requested above. Enabling debug output (sudo port -d upgrade outdated) might also help us pinpoint which ports are causing the problem.