Before
var form = new WWWForm(); form.AddField( "frameCount", Time.frameCount.ToString() ); form.AddBinaryData( "fileUpload", bytes, "screenShot.png", "image/png" );
After
var form = new WWWFormCollection { { "frameCount", Time.frameCount.ToString() }, { "fileUpload", bytes, "screenShot.png", "image/png" }, };