WebService appears & quot; because the URL ends unexpectedly, the request format cannot be recognized & quot; Solution

Note: An unhandled exception occurs during the execution of the current Web request. Check the stack trace information for details about the error and the source of the error in the code.
Exception details: System. InvalidOperationException: The request format cannot be identified because the URL ends unexpectedly with "/GetReceivedInvoices.
Source error:
An unhandled exception is generated during the execution of the current Web request. You can use the following exception stack trace information to determine the cause and location of the exception.

Resolved: add it to the <system. web> node of webservice
<WebServices>
<Protocols>
<Add name = "HttpPost"/>
<Add name = "HttpGet"/>
</Protocols>
</WebServices>