1.0OMRON SENTECH CO., LTD.https://sentech.co.jp/enSentech03https://sentech.co.jp/en/author/sentech03rich600338<blockquote class="wp-embedded-content" data-secret="d4yOc5oMiE"><a href="https://sentech.co.jp/en/faq/faq-7926">When building or running a program using SentechSDK (.NET) with .NET Framework 4.0 or later, I get the error:<br>“The mixed mode assembly was built against version ‘v2.0.50727’ of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.”</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://sentech.co.jp/en/faq/faq-7926/embed#?secret=d4yOc5oMiE" width="600" height="338" title="“When building or running a program using SentechSDK (.NET) with .NET Framework 4.0 or later, I get the error:<br>“The mixed mode assembly was built against version ‘v2.0.50727’ of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information.”” — OMRON SENTECH CO., LTD." data-secret="d4yOc5oMiE" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://sentech.co.jp/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Since Sentech SDK (.NET) was built on .NET Framework 2.0, using it with .NET Framework 4.0 or later requires replacing the automatically generated app.config file. Replace it with the .NET Framework 4.0-compatible app.config file included in the Sentech SDK .NET SDK sample code.https://sentech.co.jp/wp-content/uploads/2025/09/ogp.png1200630