在显示图像的Visual Studio中运行应用程序时询问错误“内存不足”

Question

Visual Studio 2015中正在运行的应用程序用于显示图像。但是错误“内存不足”。

我具有调用图片的功能：

Function showimg(uri As String) As Bitmap
        If uri = "" Then
            'uri = ""
            Exit Function
        End If
        Dim tClient As WebClient = New WebClient
        Dim tImage As Image = Image.FromStream(New MemoryStream(tClient.DownloadData(uri)))
        Return tImage
    End Function

请帮助我。预先感谢