C# | Invalid URI: The format of the URI could not be determined

Question

I keep getting an error saying 'Invalid URI: The format of the URI could not be determined.' The error happens on line 3
This is my code:

public static string Get()
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@"27.**.***.14");

            request.MaximumAutomaticRedirections = 4;
            request.MaximumResponseHeadersLength = 4;
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            Stream receiveStream = response.GetResponseStream();
            StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);
            string result = readStream.ReadToEnd();
            response.Close();
            readStream.Close();
            return result;
        }

Edit: it turns out that I was missing a http:// in front of the IP address, doing this solved the issue

score 1 · Accepted Answer · answered May 09 '20 at 04:09

1

try putting the protocol prefix in front the ip, i.e. in your case "http://"

answered May 09 '20 at 04:09

score -3 · Answer 2 · answered May 09 '20 at 04:25

I keep getting an error saying 'Invalid URI: The format of the URI could not be determined.' This is my code:

Let me start with saying most of your code is totally irrelevant. See, the problem is with the string you put in which happens in line 1:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(@"27..*.14");

The rest is noise. And you funny enough never even bother to tell us at which line the error happens.

And also the IP points to a HTTP server I have running on a raspberry PI

That is ALSO irrelevant. Because the parsing happens without even contacting the server there is no requirement for there actually BEING a server.

This:

.Create(@"27..*.14");

is (assuming ** is a valid number each) is NOT A URL, period. It is an IP address. URL's are not IP Addresses - among other things they must specify a protocol. Yes, one could assume that the software should assume - like your browser. It just is not implemented.

So, next time:

Go through the code step by step. You have a debugger for a reason. This would allow you to cut down the post with removing all the lines that never ever execute.
Read the error message. It is quite clear that it tells you this is not a URL.

what a "super useful" and "non-hateful" post, and not only that, but you never even gave an answer. — cir, May 26 '21 at 07:32

C# | Invalid URI: The format of the URI could not be determined

2 Answers2