https://community.graphisoft.com/t5/Archicad-C-API/Error-in-loading-Add-on-in-ARCHICAD/m-p/260750#M2056 Resolved my issue. <BR /> When I was trying to build the project in Debug mode there was some problem with the "ACAP_STATD.lib". <BR /> But after that I build it in Release mode that added the "ACAP_STAT.lib" and it works fine now. Fri, 23 Apr 2021 03:51:54 GMT Nayan 2021-04-23T03:51:54Z https://community.graphisoft.com/t5/Archicad-C-API/Error-in-loading-Add-on-in-ARCHICAD/m-p/260749#M2055 <DIV class="actalk-migrated-content">I have developed an Add-on. While I have used <BR /><STRONG>ARCHICAD 24 3008 INT TRIAL (Trial version)<BR />API Development Kit 24.3009<BR />and VS2017 (CMake Build)</STRONG><BR />I have successfully build the code and got the <STRONG>.apx</STRONG> file. I can load the Add-on perfectly in my machine and it works fine.<BR />But when I try to load it in my user's machine it shows error stating <STRONG>"The file is an outdated Add-on that cannot be used with this ARCHICAD version"</STRONG>. Can anyone kindly help me understand the issue?<BR /><BR />N.B. User is using <STRONG>ARCHICAD 24 3008 FULL</STRONG> and also for Developer ID I'm using the educational license.</DIV> Tue, 14 Sep 2021 07:40:16 GMT https://community.graphisoft.com/t5/Archicad-C-API/Error-in-loading-Add-on-in-ARCHICAD/m-p/260749#M2055 Nayan 2021-09-14T07:40:16Z https://community.graphisoft.com/t5/Archicad-C-API/Error-in-loading-Add-on-in-ARCHICAD/m-p/260750#M2056 Resolved my issue. <BR /> When I was trying to build the project in Debug mode there was some problem with the "ACAP_STATD.lib". <BR /> But after that I build it in Release mode that added the "ACAP_STAT.lib" and it works fine now. Fri, 23 Apr 2021 03:51:54 GMT https://community.graphisoft.com/t5/Archicad-C-API/Error-in-loading-Add-on-in-ARCHICAD/m-p/260750#M2056 Nayan 2021-04-23T03:51:54Z