Dart Webui Build Error

I am having problems adding web_ui to my existing dart application. I haven't even added any of the webui specific code to my html file, i'm just trying to build. I added the web_u

Solution 1:

This error message is caused by the web-ui library failing a type check. It's expecting a String but getting an AttributeName class back from html5lib.

See this issue. Are you using an xmlns attribute in your html - svg perhaps?

You could also post on the web-ui mailing list, or file a bug report.