1.0ProfessNowhttps://professnow.com/blogSushant Kumarhttps://professnow.com/blog/author/raja/rich600338<blockquote class="wp-embedded-content" data-secret="42gF6vtrNk"><a href="https://professnow.com/blog/solved-flutter-webview-throws-compiling-error/">[SOLVED] Flutter Webview throws Compiling Error.</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://professnow.com/blog/solved-flutter-webview-throws-compiling-error/embed/#?secret=42gF6vtrNk" width="600" height="338" title="“[SOLVED] Flutter Webview throws Compiling Error.” — ProfessNow" data-secret="42gF6vtrNk" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! 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://professnow.com/blog/wp-includes/js/wp-embed.min.js </script> Problem The android studio while running throws this error and stop the build Solution ThreadedInputConnectionProxyAdapterView has wrong extension .jav just change it to .java until the flutter team release the fix. Its Located to :- C:srcflutter.pub-cachehostedpub.dartlang.orgwebview_flutter-2.0.6androidsrcmainjavaioflutterpluginswebviewflutter