Ciao,

from terminal i create a /opt/pharo folder and run your command.

If you go to the applications there is a folder called Utilities and inside it there is a terminal application open it and issue the following commands

mkdir pharo
cd pharo
curl get.pharo.org | bash
./pharo-ui Pharo.image

First command will make folder, second will enter the folder, third will dowload the standard stable version of pharo to the folder, foruth will launch pharo.

Then when pharo opens
the Pharo is right open

follow the instruction Esteban gave you to test that Athens works as it should.

The Roassal2 is not load in the image.

I load it from Pharo Project Catalog. 

I select the Roassal2 project and do the Install stable version.

( a this point i have a strange dialog behaviour :    

when the system open a dialog with:
Question
Roassal2 has not been marked as tested for Pharo5.0!
Do you want to continue (installation could fail )?
when i i select the yes or no button the dialog with the same question is often redispaly. )

Do not install anything before testings. Then if everything works proceed and install one thing, only, then test it, then install the next one etc.

After install the Roassal2 like above and do the  VGTigerDemo runDemo  

answer the same error:

ExternalLibraryFunction(Object)>>error:
ExternalLibraryFunction(Object)>>externalCallFailed
ExternalLibraryFunction(ExternalFunction)>>invokeWithArguments:
AthensCairoSurface class>>primImage:width:height:
AthensCairoSurface class>>extent:format:
AthensCairoSurface class>>extent:
VGTigerDemo>>initialize
VGTigerDemo class(Behavior)>>new
VGTigerDemo class>>runDemo

Thanks,

Dario
Moving step by step will help us pin point your problem

I suspect maybe something went crazy , it happens from time to time in pharo, recently I had a nasty corruption with Pharo 6. If it happens once, its ok , if it happens frequently its a problem.


On Mon, Dec 5, 2016 at 6:35 PM Trussardi Dario Romano <dario.trussardi@tiscali.it> wrote:
Ciao,

Pharo is unable to access a library it needs; this is the native boost plugin which is normally bundled with it (and the cairo lib?)...

Guys, anybody with a mac around there?

Thierry



thanks Dimitris.

Nativeboost has been removed and been replaced by UFFI, all libraries that used Nativeboost are now using UFFI including the Cairo backend library for Athens.

OK,  but what i need to do for load UFFI Cairo library

and for load  the UFFI  library required by  GitFileTree Pharo support?


I wrong to install Pharo 5.0 on my MacBookPro with OS X  10.7.5. ?

If right remember i install Pharo 5.0 from  http://pharo.org/download   link


Thanks.
Dario