5,450 questions
Unable to Add Web Reference
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LaurieDiffey
6
Reputation points
Hi,
I'm hoping somebody can help me with an issue I'm having adding a web service. I last worked with this particular web service several few years ago, but the steps I used previously no longer seem to work. I should also say that I haven't been a proper developer for many years, so apologies in advance if anything I say is incorrect
The endpoint I'm trying to connect to is sat behind a firewall for which my IP address has been whitelisted, but if I access the endpoint's WSDL through a web browser, it returns the WSDL correctly. I have downloaded the WSDL XML and added it as an attachment here.
In Visual Studio Community 2022, I can click Add Service Reference, then Advanced, and then Add Web Reference, and I can then enter the URL for the WSDL. However, I then get an error message as below (also attached as an image):
Thinking the issue might be with Visual Studio, I tried loading the WSDL into SoapUI, which worked correctly. However, when I then tried to have SoapUI generate .Net code (which uses Microsoft's WSDL.EXE) I then got this error:
- The document at the url https://jwl3mrkq7dgb4xztli32etivg40uahbs.lambda-url.eu-central-1.on.aws/SessionManager.svc?wsdl was not recognized as a known document type.
The error message from each known type may help you fix the problem:- Report from 'XML Schema' is '' ', hexadecimal value 0x1F, is an invalid character. Line 1, position 1.'.
- Report from 'DISCO Document' is '' ', hexadecimal value 0x1F, is an invalid character. Line 1, position 1.'.
- Report from 'WSDL Document' is 'There is an error in XML document (1, 1).'.
- ' ', hexadecimal value 0x1F, is an invalid character. Line 1, position 1.
I don't understand the line "hexadecimal value 0x1F, is an invalid character. Line 1, position 1" as this isn't true!!
In summary, I need to be able to add the endpoint as a web reference to have Visual Studio generate the methods, etc, for me. I know this worked when I last used it (probably 10 years ago) in an earlier version of Visual Studio, but I can't get it to work now. By the way, the endpoint is from a third party, so I have no control of their endpoint or its WSDL
Can anybody help me to resolve this issue so I can load the web reference into Visual Studio
Thanks very much in advance for any pointers
LD
Developer technologies Visual Studio Other
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Tianyu Sun-MSFT 34,436 Reputation points Microsoft External Staff2022-12-19T05:37:25.313+00:00 Hello @LaurieDiffey ,
Welcome to Microsoft Q&A forum. What type of project are you using? Are you using a WCF project? Can you confirm that the URL is still valid?
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LaurieDiffey 6 Reputation points
2022-12-19T09:01:31.943+00:00 I'm currently using a Windows Forms project in VB, just to test the connectivity. Once I got the connectivity working, I was anticipating changing the project type. Might that make a difference? If so, I could try it with a WCF project
Thanks for your help
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LaurieDiffey 6 Reputation points
2022-12-19T11:37:45.713+00:00 I tried creating a WCF application, and then attempted the Add Web Reference in the same way, but got exactly the same error
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Tianyu Sun-MSFT 34,436 Reputation points Microsoft External Staff
2022-12-27T13:39:29.9+00:00 Hi @LaurieDiffey ,
May I ask that whether you have confirmed that the URL is valid(go to the service directly in a web browser) and is there any error prompted if you type the URL directly in a web browser?
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LaurieDiffey 6 Reputation points
2022-12-28T12:47:29.003+00:00 Thanks for the update. Yes, the URL to the WSDL works fine, and as I said I can open it successfully in both SoapUI and a standard web browser
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Tianyu Sun-MSFT 34,436 Reputation points Microsoft External Staff
2022-12-29T07:37:03.787+00:00 Hi @LaurieDiffey ,
I tried to test the whole URL added with /$metadata, but looked like the returned message was null. Is it possible to confirm this with the service owner maybe(I know it used to work, perhaps the metadata publishing for the service is not enabled currently?)?
Besides, if you remove "SessionManager.svc?wsdl", and check this URL "https://jwl ... .lambda-url.eu-central-1.on.aws"(just for checking), will the error disappear?
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LaurieDiffey 6 Reputation points
2023-01-03T10:09:13.257+00:00 It works fine in a web browser
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