[MacPorts] #49669: port upgrade outdated @ MacPorts 2.3.4 Error: Unable to open port: can't read "mpi.default": no such variable

[MacPorts]

#49669: port upgrade outdated @ MacPorts 2.3.4 Error: Unable to open port: can't
read "mpi.default": no such variable
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  Reporter:  rioyokota@…  |      Owner:  dstrubbe@…
      Type:  defect       |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.4
Resolution:  fixed        |   Keywords:  haspatch
      Port:               |
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Comment (by hosamani@…):

 OK. Thank you. I realize my folly now. I was trying to upgrade the ports
 without updating the port tree once again after encountering the error.
 Looks like its all fixed now.
 Thank you

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Ticket URL: <https://trac.macports.org/ticket/49669#comment:15>
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