https://community.graphisoft.com/t5/Archicad-C-API/SOLVED-Cannot-open-include-file-stl-prolog-h/m-p/236898#M5392 <DIV class="actalk-migrated-content">Hello,<BR /><BR />it is a long time since last time here. I'm porting our AC Addon to v.18 and I'm getting this compile error:<BR />api development kit 18\support\modules\gsroot\STL/algorithm(31): fatal error C1083: Cannot open include file: 'stl/_prolog.h': No such file or directory<BR /><BR />Do you have any idea how to solve this?<BR /><BR />- Matti</DIV> Tue, 01 Aug 2023 11:55:08 GMT Anonymous 2023-08-01T11:55:08Z https://community.graphisoft.com/t5/Archicad-C-API/SOLVED-Cannot-open-include-file-stl-prolog-h/m-p/236898#M5392 <DIV class="actalk-migrated-content">Hello,<BR /><BR />it is a long time since last time here. I'm porting our AC Addon to v.18 and I'm getting this compile error:<BR />api development kit 18\support\modules\gsroot\STL/algorithm(31): fatal error C1083: Cannot open include file: 'stl/_prolog.h': No such file or directory<BR /><BR />Do you have any idea how to solve this?<BR /><BR />- Matti</DIV> Tue, 01 Aug 2023 11:55:08 GMT https://community.graphisoft.com/t5/Archicad-C-API/SOLVED-Cannot-open-include-file-stl-prolog-h/m-p/236898#M5392 Anonymous 2023-08-01T11:55:08Z https://community.graphisoft.com/t5/Archicad-C-API/SOLVED-Cannot-open-include-file-stl-prolog-h/m-p/236899#M5393 Solved by adding:<BR /> API Development Kit 18\Support\Modules\GSRoot\STL\imp<BR /> to the Additional Include Directories Mon, 12 Jan 2015 09:53:40 GMT https://community.graphisoft.com/t5/Archicad-C-API/SOLVED-Cannot-open-include-file-stl-prolog-h/m-p/236899#M5393 Anonymous 2015-01-12T09:53:40Z