System.TypeInitializationException: 'The type initializer for 'ScheduleDataProcessor.Logger' threw an exception.'

Question

Dear Sir,
i am getting following exception
System.TypeInitializationException: 'The type initializer for 'ScheduleDataProcessor.Logger' threw an exception.'
inner exception NotSupportedException: The given path's format is not supported.
please find the following code:

namespace ScheduleDataProcessor
public partial class DataProcessor : Form
{
private System.Timers.Timer timer = new System.Timers.Timer();
DBConnection dbConnection = new DBConnection();
string pathBackup = ((object)ConfigurationManager.AppSettings["DATABACKUP"]).ToString();
public DataProcessor()
{
InitializeComponent();
}

    private void btnStartStop_Click(object sender, EventArgs e)  
    {  
        this.timer.Elapsed += new ElapsedEventHandler(this.OnElapsed);  
        this.timer.Interval = (double)Convert.ToInt64(((object)ConfigurationManager.AppSettings["Interval"]).ToString());  
        this.timer.Enabled = true;  
    }  

    private void OnElapsed(object sender, ElapsedEventArgs e)  
    {  
        this.timer.Enabled = false;  
        Logger.Append("Service is recalled");   //**<-----**--getting exception here****  
        try  
        {  
            this.LoopDataDirectory();  
        }  
       catch (Exception ex)  
        {  
            Logger.Append(ex.Message.ToString());  
        }  
        finally  
        {  
            this.timer.Enabled = true;  
        }  
    }  

Answer 1

@ manojkumarmahajan-8101, thanks for the feedback, based on my test, I reproduced your problem.

We also need to check if Error folder exists in your bin/debug folder.

Please make the following change:

 static Logger()  
        {  
            if (!Directory.Exists(outputPath))  
            {  
                Directory.CreateDirectory(outputPath);  
            }  
  
            logDirectory = outputPath +  System.Configuration.ConfigurationSettings.AppSettings["ERRORLOG"].ToString();;  
            if (File.Exists(logDirectory) && File.ReadAllBytes(logDirectory).Length >= 102400)  
            {  
                File.Delete(logDirectory);  
            }  
            if (!File.Exists(logDirectory))  
            {  
                FileStream fs = File.Create(logDirectory);  
                fs.Close();  
            }  
            sw = File.AppendText(logDirectory);  
        }  

Hope this could help you.

Best Regards,
Jack

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