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POPrepareRequestUserAuthorizationAsync fails
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  1. POPrepareRequestUserAuthorizationAsync fails
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    copied!<p>I had very simple code which worked fine for me:</p> <pre><code>var url = System.Web.HttpContext.Current.Request.Url; Uri callbackUrl = new System.Uri(url, "oAuth2CallBack"); var ub = new UriBuilder(callbackUrl); // decodes urlencoded pairs from uri.Query to var var httpValueCollection = HttpUtility.ParseQueryString(callbackUrl.Query); httpValueCollection.Add(UrlArguments.Param, null); // urlencodes the whole HttpValueCollection ub.Query = httpValueCollection.ToString(); var authorizationRequest = OAuthClient.PrepareRequestUserAuthorization(new[] { "somedata" }, ub.Uri); authorizationRequest.Send(); </code></pre> <p>I've updated OAuth's NuGet packages and rewrite the code this way:</p> <pre><code>var url = System.Web.HttpContext.Current.Request.Url; Uri callbackUrl = new System.Uri(url, "oAuth2CallBack"); var ub = new UriBuilder(callbackUrl); // decodes urlencoded pairs from uri.Query to var var httpValueCollection = HttpUtility.ParseQueryString(callbackUrl.Query); httpValueCollection.Add(UrlArguments.Param, null); // urlencodes the whole HttpValueCollection ub.Query = httpValueCollection.ToString(); var client = new WebServerClient(new AuthorizationServerDescription { TokenEndpoint = Configuration.OAuth2.TokenEndpoint, AuthorizationEndpoint = Configuration.OAuth2.AuthorizationEndpoint, }, clientIdentifier: Configuration.OAuth2.ClientIdentifier, clientCredentialApplicator: ClientCredentialApplicator.PostParameter( Configuration.OAuth2.ClientSecret)); var authorizationRequest = await client.PrepareRequestUserAuthorizationAsync(new[] { "somedata" }, ub.Uri); await authorizationRequest.SendAsync(); </code></pre> <p>but <code>PrepareRequestUserAuthorizationAsync</code> throws exception </p> <blockquote> <p>"Attempt by method 'DotNetOpenAuth.OAuth2.WebServerClient+d__3.MoveNext()' to access method 'System.Collections.Generic.List`1..ctor()' failed."</p> </blockquote>
 

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