soapUI: Error does not close tag

Watch for ?wsdl.

You should use it like this:

http://localhost:52086/WebService1.asmx?wsdl

I had the same problem with SoapUI 5.0.0 on Linux Mint.
In my case the wsdl url was correct and it could be reached via any browser.(you might need to add '?wsdl' to the end of url).

http://localhost:52086/WebService1.asmx?wsdl

In my case, I had configured my firefox to use a proxy server and Soupui was trying to load proxy setting from my Mozilla Firefox which caused SoapUI to be unable to resolve import XSD of WSDL which resides on my local Network. After setting proxy to None in Soapui the problem has been resolved too.

File->Preferences->Proxy Settings->None