https://community.graphisoft.com/t5/Archicad-C-API/SolidOperation-APIERR-GENERAL-error/m-p/704781#M10922 <P>I'm encountering an APIERR_GENERAL error when calling ACAPI_Element_SolidOperation_Create using the APISolid_Subtract operation.<BR /><BR /></P><P>In this specific case, the Operator completely encompasses the Target, meaning the subtraction leaves absolutely nothing of the Target behind (the resulting volume is zero).<BR />Does Archicad throw this error because the Target element completely disappears?<BR /><BR /></P><P>For context, both the Target and Operator elements are valid, solid Morphs.</P><P>&nbsp;</P><P><FONT face="courier new,courier" color="grey">Operating system used: <EM>Windows 11 25H2</EM></FONT></P> Wed, 10 Jun 2026 01:01:10 GMT YONGWOO KIM 2026-06-10T01:01:10Z https://community.graphisoft.com/t5/Archicad-C-API/SolidOperation-APIERR-GENERAL-error/m-p/704781#M10922 <P>I'm encountering an APIERR_GENERAL error when calling ACAPI_Element_SolidOperation_Create using the APISolid_Subtract operation.<BR /><BR /></P><P>In this specific case, the Operator completely encompasses the Target, meaning the subtraction leaves absolutely nothing of the Target behind (the resulting volume is zero).<BR />Does Archicad throw this error because the Target element completely disappears?<BR /><BR /></P><P>For context, both the Target and Operator elements are valid, solid Morphs.</P><P>&nbsp;</P><P><FONT face="courier new,courier" color="grey">Operating system used: <EM>Windows 11 25H2</EM></FONT></P> Wed, 10 Jun 2026 01:01:10 GMT https://community.graphisoft.com/t5/Archicad-C-API/SolidOperation-APIERR-GENERAL-error/m-p/704781#M10922 YONGWOO KIM 2026-06-10T01:01:10Z