[MacPorts] #63710: "Unable to open port: can't read "universal_possible": no such variable" after upgrading to 2.7.1

[MacPorts]

#63710: "Unable to open port: can't read "universal_possible": no such variable"
after upgrading to 2.7.1
-----------------------+--------------------
  Reporter:  singalen  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  base      |    Version:  2.7.1
Resolution:            |   Keywords:
      Port:            |
-----------------------+--------------------

Comment (by singalen):

 Thank you.
 It was my local project, which didn't have a remote at all.

 I admin, it was purely my setup problem.
 The only thing that macports could do is to print that specific error
 message even without -d, if possible.

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Ticket URL: <https://trac.macports.org/ticket/63710#comment:9>
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