Picasa now uses OAuth 2.0 for authentication. You can see about OAuth 2.0 
here 
<https://developers.google.com/api-client-library/dotnet/guide/aaa_oauth>.

On Tuesday, September 22, 2015 at 11:57:27 AM UTC+5:45, binhminh dolam 
wrote:
>
> Hi! I have a big problem, i wrote a desktop application to upload image on 
> Picasa with C#, but it have exception "Execution of authentication request 
> returned unexpected result: 404", my account exactly. I don't know, i can 
> access with my accout?
> My code ( From 
> https://developers.google.com/picasa-web/docs/1.0/developers_guide_dotnet)
> PicasaService service = new PicasaService("bm-piscas-1076 ");
>                 service.setUserCredentials(txt_Users.Text, txt_Pass.Text);
>                 AlbumEntry newEntry = new AlbumEntry();
>                 newEntry.Title.Text = txt_AlbumName.Text;
>                 newEntry.Summary.Text = "This is an album";
>                 AlbumAccessor ac = new AlbumAccessor(newEntry);
>                 //set to "private" for a private album
>                 ac.Access = "public";
>
>                 Uri feedUri = new 
> Uri(PicasaQuery.CreatePicasaUri(txt_Users.Text));
>
>                 PicasaEntry createdEntry = 
> (PicasaEntry)service.Insert(feedUri, newEntry);
>                 foreach (string fs in openFile.FileNames)
>                 {
>                     Uri postUri = new 
> Uri(PicasaQuery.CreatePicasaUri(txt_Users.Text, 
> createdEntry.Id.ToString()));
>
>                     System.IO.FileInfo fileInfo = new 
> System.IO.FileInfo(fs);
>                     System.IO.FileStream fileStream = fileInfo.OpenRead();
>
>                     PicasaEntry entry = 
> (PicasaEntry)service.Insert(postUri, fileStream, "image/jpeg", fs);
>
>                     fileStream.Close();
>                 }
>
> Thankyou!
>

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