What tools are there to validate a wsdl file?

Question

PHP

Hello everybody!
There is a task to make a SOAP client for one application, the application developers sent me their wsdl file.
The problem is that, for example, when trying to create a client in php
$client = new SoapClient("my.wsdl");
, an error occurs:

Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing Schema: unexpected <annotation> in complexType

I tried to open the file through SoapUI - also an error, but a different one:
Error: The value '' is an invalid name.
I tried apache xcf (wsdlvalidator)
gives:

WSDLValidator Error : org.apache.ws.commons.schema.XmlSchemaException: Attempt to set empty name.

There is a service https://www.wsdl-analyzer.com/
But the file is not loaded there because it is quite large ~2mb
Actually the question is:
What do you use to validate wsdl files, what tools, maybe there are tools that show at least on which line in wsdl file has an error (an empty element for example)?