Login to our social questions & Answers Engine to ask questions answer peoples questions & connect with other people. I think you're under the mistaken impression that it's not a thing any more, when it very much still is. 'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension method 'ReadAsAsync' accepting a first argument of type 'System.Net.Http.HttpContent' could be found (are you missing a using directive or an assembly reference?) 19,414 Solution 1 ReadAsAsyncis a .NET Standard extension that's actually shared between ASP.NET Core and ASP.NET Web Api (via a NuGet library). Right now, System.Net.Http.Formatting.dll appears to reference version 4.5.0.0 of Newtonsoft.Json.DLL, whereas the latest version is 6.0.0.0. Set Header on Request - Before 4.3. step 2.Adding Custom Http Headers to HttpClient before send a request. It'll get better. The HttpContent instance from which to read. Why am I getting some extra, weird characters when making a file from grep output? Invocation ID: not sure, may be this cb0120ba-d257-4f63-a805-a9279c4ac389. Namespace: System.Net.Http range rover sport timing chain replacement cost. It gives me the compilation error: 'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension method 'ReadAsAsync' accepting a first argument of type 'System.Net.Http.HttpContent' could be found (are you missing a using directive or an assembly reference?) stranger things capsule. When using the HttpClient in asp.net core the method will fail to perform the deserialization unless you set the mediaType in the accept headers, in example xcode - Can you build dynamic libraries for iOS and bash - How to check if a process id (PID) database - Oracle: Changing VARCHAR2 column to CLOB. When you use instance method syntax to call this method, omit the first parameter. More info about Internet Explorer and Microsoft Edge, https://msdn.microsoft.com/en-us/library/bb384936(v=vs.118), https://msdn.microsoft.com/en-us/library/bb383977(v=vs.118). Right now, System.Net.Http.Formatting.dll appears to reference version 4.5.0.0 of Newtonsoft.Json.DLL, whereas the latest version is 6.0.0.0. HttpClient class to send data to and receive data from Web API which is hosted on local IIS web server. That means youll need to also add a binding redirect to avoid a .NET Assembly exception if you reference the latest Newtonsoft NuGet package or DLL: So an alternative solution to adding a reference to System.Net.Http.Formatting.dll is to read the response as a string and then desearalize yourself with JsonConvert.DeserializeObject(responseAsString). Please briefly explain why you feel this question should be reported. When you use instance method syntax to call this method, omit the first parameter. Anim non consequat, qui magna in id dolor nostrud lorem ex nulla enim dolore nisi irure sit et laboris culpa do amet, tempor fugiat occaecat. When using the HttpClient in asp.net core the method will fail to perform the deserialization unless you set the mediaType in the accept headers, in example, Deserunt dolore dolor tempor ut duis nostrud ut ut excepteur irure eu sit cillum et aute aliqua, labore ipsum magna lorem est anim esse veniam. By registering, you agree to the Terms of Service and Privacy Policy .*. It's one of those things where some devs will agree and some will disagree. At some point Microsoft will come out with an updated NuGet package, but in the meantime here is a work around. Fill in the Headers to add to HTTP requests field. 'HttpContent' does not contain a definition for 'ReadAsAsync' and no extension method 'ReadAsAsync' accepting a first argument of type 'HttpContent' could be found (are you missing a using directive or an assembly reference?) 'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension method 'ReadAsAsync' accepting a first argument of type 'System.Net.Http.HttpContent' could be found (are you missing a using directive or an Assembly reference?) Type: System.Threading.Tasks.Task
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