[MacPorts] #61964: Getting errors upon using "upgrade outdated"

[MacPorts]

#61964: Getting errors upon using "upgrade outdated"
------------------------+---------------------
 Reporter:  TheTanster  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.4
 Keywords:              |       Port:  haskell
------------------------+---------------------
 I'm getting the following errors which I suspect are associated with the
 Haskell package due to the "hs-" prefixes but I don't know how to fix
 them:

 perses:~ kytan$ sudo port upgrade outdated\\
 Password:\\
 Nothing to upgrade.\\
 --->  Scanning binaries for linking errors \\
 --->  Found 4 broken files, matching files to ports\\
 Warning: No port hs-cabal-install found in the index; can't rebuild\\
 Warning: No port hs-alex found in the index; can't rebuild\\
 Warning: No port hs-happy found in the index; can't rebuild\\
 Warning: No port hs-hscolour found in the index; can't rebuild\\
 --->  Broken files found, but all associated ports are not in the index
 and so cannot be rebuilt.\\

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Ticket URL: <https://trac.macports.org/ticket/61964>
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