> On 23 May 2020, at 5:13 pm, Christopher Chavez <[email protected]> wrote:
> 
> On 5/23/2020 10:57 AM, Philippe Morey-Chaisemartin wrote:
>> xcode version:  11.5 (11E608c)
> 
> I think new Xcode versions had to first be whitelisted by MacPorts, so
> it's likely that the recent 11.5 release just hasn't been added yet.

True, but not the cause of the issue here I think. I have Xcode 11.5 installed 
on macOS10.15 and have no problems.

Can you check that 

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk

actually exists and contains a valid SDK ?

 > ls 
 > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk
 >  
Entitlements.plist      Library                 SDKSettings.json        
SDKSettings.plist       System                  usr

If not try reinstalling Xcode.

Chris

> 

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