[MacPorts] #61320: MacPorts-2.6.3-10.15-Catalina.pkg installer error

[MacPorts]

#61320: MacPorts-2.6.3-10.15-Catalina.pkg installer error
-------------------------+--------------------
 Reporter:  pierswalter  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:  2.6.3
 Keywords:               |       Port:
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 I'm trying to install MacPorts-2.6.3-10.15-Catalina.pkg on macOS 10.15.7
 with Xcode 12.0.1.
 The installation seems to go well, but the post install script fails (I'll
 attach the installer log).

 Afterwards, MacPorts seems to work fine (*), so I'm not sure if the script
 failure is indicative of an actual problem or not.

 (*) I cannot install apr-util though, for which I'll open a separate
 ticket.

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Ticket URL: <https://trac.macports.org/ticket/61320>
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