[MacPorts] #57633: I tried to upgrade macports. but this error showed up

[MacPorts]

#57633: I tried to upgrade macports. but this error showed up
----------------------+--------------------
  Reporter:  vvn29    |      Owner:  (none)
      Type:  defect   |     Status:  closed
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.5.4
Resolution:  invalid  |   Keywords:
      Port:           |
----------------------+--------------------

Old description:

> I tried to upgrade macports. but this error showed up
>
> VIVIANs-MacBook-Pro:~ vivianwilfred$ sudo port upgrade outdated
> Password:
> Error: Unable to determine location of a macOS SDK.
> Error: Unable to open port: can't read "configure.sdkroot": Unable to
> determine location of a macOS SDK.
>

> What should i do to correct this?

New description:

 I tried to upgrade macports. but this error showed up
 {{{
 VIVIANs-MacBook-Pro:~ vivianwilfred$ sudo port upgrade outdated
 Password:
 Error: Unable to determine location of a macOS SDK.
 Error: Unable to open port: can't read "configure.sdkroot": Unable to
 determine location of a macOS SDK.
 }}}

 What should i do to correct this?

--

Comment (by mf2k):

 In the future, please use WikiFormatting.

-- 
Ticket URL: <https://trac.macports.org/ticket/57633#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS