Question

我尝试让控制台应用程序使用NAppUpdate从服务器自行更新。我在Windows上测试了一个示例控制台应用程序，以确保它正常工作，现在已经过验证，它可以正确下载文件。但是在我的Rapsberry Pi上运行相同的程序时，我收到以下错误：

[UpdateHandler] : Preparing Update Source
[UpdateHandler] : Checking for updates
[UpdateHandler] : Check updates Completed
[UpdateHandler] : Updating
[UpdateHandler] : 100%
[UpdateHandler] : 100%
[UpdateHandler] : ERROR | System.TypeInitializationException: An exception was thrown by the type initializer for NAppUpdate.Framework.Utils.PermissionsCheck ---> System.NotImplementedException: The requested feature is not implemented.
at System.Security.Principal.WindowsIdentity.get_Groups () [0x00000] in <filename unknown>:0
at NAppUpdate.Framework.Utils.PermissionsCheck..cctor () [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at NAppUpdate.Framework.UpdateManager.ApplyUpdates (Boolean relaunchApplication, Boolean updaterDoLogging, Boolean updaterShowConsole) [0x00000] in <filename unknown>:0
at NAppUpdate.Framework.UpdateManager.ApplyUpdates (Boolean relaunchApplication) [0x00000] in <filename unknown>:0
at RunControl.Update.UpdateHandler+<>c.<TryUpdate>b__5_1 (IAsyncResult asyncResult) [0x00000] in <filename unknown>:0

我在Raspberry Pi 3上运行控制台应用程序，安装了Raspbian Jessie Lite。单声道版本为3.2.8（我只安装了mono-runtime）

示例代码在这里：

public bool CheckUpdate()
{
    try
    {
        UpdateManager _UpdateManager = UpdateManager.Instance;
        _UpdateManager.UpdateSource = PrepareUpdateSource();
        _UpdateManager.Config.TempFolder = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "TMP");
        _UpdateManager.ReinstateIfRestarted();
        if (UpdateManager.Instance.State == UpdateManager.UpdateProcessState.Checked ||
               UpdateManager.Instance.State == UpdateManager.UpdateProcessState.AfterRestart ||
               UpdateManager.Instance.State == UpdateManager.UpdateProcessState.AppliedSuccessfully)
            UpdateManager.Instance.CleanUp();
        UpdateCheck();
        return true;
    }
    catch (Exception e)
    {
        Console.WriteLine("[UpdateHandler] : ERROR | " + e.ToString());
        return false;
    }
}
private IUpdateSource PrepareUpdateSource()
{
    Console.WriteLine("[UpdateHandler] : Preparing Update Source");
    return new NAppUpdate.Framework.Sources.SimpleWebSource(source);
}

protected void UpdateCheck()
{
    UpdateManager _UpdateManager = UpdateManager.Instance;

    Console.WriteLine("[UpdateHandler] : Checking for updates");
    _UpdateManager.BeginCheckForUpdates(asyncResult =>
    {

        if (asyncResult.IsCompleted)
        {
            Console.WriteLine("[UpdateHandler] : Check updates Completed");
            //still need to check for caught exceptions if any and rethrow
            ((UpdateProcessAsyncResult)asyncResult).EndInvoke();
            //no updates were found, or an error has occured...
            if(_UpdateManager.UpdatesAvailable == 0)
            {
                Console.WriteLine("[UpdateHandler] : No update available");
                return;
            }
        }
        TryUpdate();
    }, null);
}
private void TryUpdate()
{
    Console.Writelin("[UpdateHandler] : Updating");
    UpdateManager.Instance.ReportProgress += status =>
    {
        Console.WriteLine("[UpdateHandler] : " + status.Percentage + "%");
    };
    UpdateManager.Instance.BeginPrepareUpdates(asyncResult =>
    {
        try
        {
            UpdateManager.Instance.ApplyUpdates(false);
        }
        catch(Exception e)
        {
            Console.WriteLine("[UpdateHandler] : ERROR ON UPDATE | " + e.ToString());
        }
        if (UpdateManager.Instance.State == UpdateManager.UpdateProcessState.RollbackRequired)
            UpdateManager.Instance.RollbackUpdates();
    }, null);
}

如错误所示，它会找到可用的更新，但在CheckUpdate()函数中失败。

NAppUpdate Mono C＃上的NotImplementedException

0 个答案: