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From: Simon Wright <simon@pushface.org>
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Subject: Re: unknown error mesage
Date: Thu, 18 Mar 2021 17:34:34 +0000
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ldries46 <bertus.dries@planet.nl> writes:

>> This are the values:
>> GPR_PROJECT_PATH=C:\GNAT\GtkADA\lib\gnat;D:\ada\project\template-parser
>> ADA_PROJECT_PATH=C:\GNAT\GtkADA\lib\gnat;.....
>> I think The Path és are the same, I am using GNAT  Studio Community
>> version 2020 and all Gtk.ali are GNAT Lib v2020
>> gprbuild -v did not change anything. Changing the compiler is the
>> worst thing I can do because I cannot find any straight forward
>> method os installing like the mthod from Adacore
> I finally found the problem I believe
> Datum.ali build by V "GNAT Lib v9"        GPS Community version 2020

"GNAT Lib v9" is **not** generated by GNAT CE 2020.

I just tried on a 64-bit Windows virtual machine (the download was
gnat-2020-20200429-x86_64-windows-bin.exe, the shasum matches).

The ALI content is as I stated above,the same as your gtk.ali quoted
below.

Are you **100%** sure that the compiler you're running is the one you
think it is?

What does "gnatls -v" say? should be

GNATLS Community 2020 (20200429-93)
Copyright (C) 1997-2020, Free Software Foundation, Inc.

> gtk.ali nuild by        V "GNAT Lib v2020" AdaCore Download
>
> Both are dowmloaded feom the same page of AdaCore.
> What is the best way to solve this?