[MacPorts] #32077: enforce-variants gtk2 +universal - @MacPorts version 2.03 - error

[MacPorts]

#32077: enforce-variants gtk2 +universal - @MacPorts version 2.03 - error
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 Reporter:  adam.clay@…              |       Owner:  macports-tickets@…                   
     Type:  defect                   |      Status:  new                                  
 Priority:  Normal                   |   Milestone:                                       
Component:  ports                    |     Version:  2.0.3                                
 Keywords:                           |        Port:  p5.12-xml-parser                     
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Comment(by adam.clay@…):

 Replying to [comment:2 ryandesign@…]:
 > And you know, we have scala in MacPorts. So all you should have needed
 to do was e.g. "sudo port install scala29" and it would take care of all
 the dependencies for you.
 >
 > You said you installed "libpng 1.4.5 or Combo Installer". If that means
 you manually installed libpng, without using MacPorts, please uninstall
 it; it might interfere with MacPorts.

 I tried installing Scala with the command "sudo port install scala29", but
 it seemed that when I tried to open scala after that, the icon in the dock
 just sat there for awhile and never loaded, eventually just quitting on
 its own.  Can anyone tell me how to unsinstall the "libpng 1.4.5" thing?
 As ryandesign at macports.org had told me to do?

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Ticket URL: <https://trac.macports.org/ticket/32077#comment:7>
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