Program crashes when opening

Question

1.00/5 (2 votes)

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Problem signature:
Problem Event Name:CLR20r3
Problem Signature 01:xpro.exe
Problem Signature 02:2.1.1.3
Problem Signature 03:503bf27a
Problem Signature 04:Microsoft.VisualBasic
Problem Signature 05:10.0.0.0
Problem Signature 06:4ba2183b
Problem Signature 07:88
Problem Signature 08:8
Problem Signature 09:System.IO.FileNotFoundException
OS Version:6.1.7600.2.0.0.256.1
Locale ID:3081
Additional Information 1:0a9e
Additional Information 2:0a9e372d3b4ad19135b953a78882e789
Additional Information 3:0a9e
Additional Information 4:0a9e372d3b4ad19135b953a78882e789

This are the error details when my program xPro crashes when opening. Why exactly is it crashing?

In my computer it works. It fails in my customer's computers.

The only thing this program has to do with reading any file on form load is reading s few files that are online so everyone has access to them. The only other thing I can think of is with newer versions of my program with the auto updater. I have it to delete and download the updater everytime the program opens the 'Check For Updates' form so I can make sure everyone has the latest version of the updater incase I find any bugs in it or make any changes. The code for deleting the old updater is in a try statement so I don't see how it would cause the program to not load if it can't find the file and I know everyone has the updater because it is installed into the directory with the program when someone installs it.

I figured the System.IO was the part of the error details that was causing it

The code that seems to cause the issue is the following one:

VB

Try
            Dim instance As WebClient = New WebClient
            Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/XboxNews.txt"
            Dim returnValue As String
            returnValue = instance.DownloadString(address)
            KryptonTextBox1.Text = returnValue
        Catch ex As Exception

        End Try
        Try
            Dim instance As WebClient = New WebClient
            Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Battlefield.txt"
            Dim returnValue As String
            returnValue = instance.DownloadString(address)
            KryptonTextBox2.Text = returnValue
        Catch ex As Exception

        End Try
        Try
            Dim instance As WebClient = New WebClient
            Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Minecraft.txt"
            Dim returnValue As String
            returnValue = instance.DownloadString(address)
            KryptonTextBox3.Text = returnValue
        Catch ex As Exception

        End Try
        Try
            Dim instance As WebClient = New WebClient
            Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Other%20Games.txt"
            Dim returnValue As String
            returnValue = instance.DownloadString(address)
            KryptonTextBox4.Text = returnValue
        Catch ex As Exception

        End Try
        If Not File.Exists("C:\xPro\xProUpdater.exe") Then
            Try
                link = "https://dl.dropbox.com/u/76035776/xPro/xProUpdater.exe"
                Dim wr As WebRequest
                wr = WebRequest.Create(link)
                Dim webr As WebResponse = wr.GetResponse
                Dim wc As New WebClient
                wc.DownloadFile(link, "C:\xPro\xProUpdater.exe")
            Catch ex As Exception

            End Try
        Else
            'Do Nothing
        End If
        If My.Settings.AutoUpdate = Nothing Then
            My.Settings.AutoUpdate = "On"
        End If
        If My.Settings.AutoUpdate = "On" Then
            AutoupdateToolStripMenuItem.Text = "Autoupdate: On"
            Try
                KryptonLabel3.Text = Me.ProductVersion
                Dim instance As WebClient = New WebClient
                Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/Version.txt"
                Dim returnValue As String
                returnValue = instance.DownloadString(address)
                KryptonLabel4.Text = returnValue
                If KryptonLabel3.Text >= KryptonLabel4.Text Then

                Else
                    CheckUpdate.Show()
                End If
                Me.Refresh()
            Catch ex As Exception
                MessageBox.Show("Error: Failed to check latest version.")
            End Try
        ElseIf My.Settings.AutoUpdate = "Off" Then
            AutoupdateToolStripMenuItem.Text = "Autoupdate: Off"
        End If
        Me.Show()
        Timer1.Start()
        NotifyIcon1.Text = "xPro " + Me.ProductVersion
        If My.Settings.SearchEngine = Nothing Then
            My.Settings.SearchEngine = "Google"
        End If
        Try
            KryptonManager1.GlobalPaletteMode = My.Settings.Theme
        Catch ex As Exception
            KryptonManager1.GlobalPaletteMode = ComponentFactory.Krypton.Toolkit.PaletteModeManager.Office2007Black
        End Try

        KryptonComboBox1.Text = My.Settings.SearchEngine

Posted 28-Aug-12 6:44am

Zack Mcintosh

Updated 28-Aug-12 19:31pm

Joan M

v2

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Comments

[no name] 28-Aug-12 12:51pm

System.IO.FileNotFoundException

Kuthuparakkal 28-Aug-12 12:56pm

post the code, am very poor in guessin you damn code

lewax00 28-Aug-12 13:14pm

Simple: the program is trying to access a file that doesn't exist. Without the code it's hard to tell you more than that.

Zack Mcintosh 28-Aug-12 14:42pm

https://dl.dropbox.com/u/76035776/xPro/xProSource.zip
You can download the source of my program there. I hope that helps.

[no name] 28-Aug-12 15:02pm

It is highly unlikely that you will get too many takers for downloading an unknown project from an unknown source.

Zack Mcintosh 28-Aug-12 15:20pm

There is a lot of coding to this program. I can't post it all on here. People stated that they can't really help me without seeing the code so that is all I can do.

[no name] 28-Aug-12 15:37pm

You do not need to post all of it, only the parts relevant to your problem/question.

Zack Mcintosh 28-Aug-12 15:53pm

[code]
Try
Dim instance As WebClient = New WebClient
Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/XboxNews.txt"
Dim returnValue As String
returnValue = instance.DownloadString(address)
KryptonTextBox1.Text = returnValue
Catch ex As Exception

End Try
Try
Dim instance As WebClient = New WebClient
Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Battlefield.txt"
Dim returnValue As String
returnValue = instance.DownloadString(address)
KryptonTextBox2.Text = returnValue
Catch ex As Exception

End Try
Try
Dim instance As WebClient = New WebClient
Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Minecraft.txt"
Dim returnValue As String
returnValue = instance.DownloadString(address)
KryptonTextBox3.Text = returnValue
Catch ex As Exception

End Try
Try
Dim instance As WebClient = New WebClient
Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/xProNews/Other%20Games.txt"
Dim returnValue As String
returnValue = instance.DownloadString(address)
KryptonTextBox4.Text = returnValue
Catch ex As Exception

End Try
If Not File.Exists("C:\xPro\xProUpdater.exe") Then
Try
link = "https://dl.dropbox.com/u/76035776/xPro/xProUpdater.exe"
Dim wr As WebRequest
wr = WebRequest.Create(link)
Dim webr As WebResponse = wr.GetResponse
Dim wc As New WebClient
wc.DownloadFile(link, "C:\xPro\xProUpdater.exe")
Catch ex As Exception

End Try
Else
'Do Nothing
End If
If My.Settings.AutoUpdate = Nothing Then
My.Settings.AutoUpdate = "On"
End If
If My.Settings.AutoUpdate = "On" Then
AutoupdateToolStripMenuItem.Text = "Autoupdate: On"
Try
KryptonLabel3.Text = Me.ProductVersion
Dim instance As WebClient = New WebClient
Dim address As String = "https://dl.dropbox.com/u/76035776/xPro/Version.txt"
Dim returnValue As String
returnValue = instance.DownloadString(address)
KryptonLabel4.Text = returnValue
If KryptonLabel3.Text >= KryptonLabel4.Text Then

Else
CheckUpdate.Show()
End If
Me.Refresh()
Catch ex As Exception
MessageBox.Show("Error: Failed to check latest version.")
End Try
ElseIf My.Settings.AutoUpdate = "Off" Then
AutoupdateToolStripMenuItem.Text = "Autoupdate: Off"
End If
Me.Show()
Timer1.Start()
NotifyIcon1.Text = "xPro " + Me.ProductVersion
If My.Settings.SearchEngine = Nothing Then
My.Settings.SearchEngine = "Google"
End If
Try
KryptonManager1.GlobalPaletteMode = My.Settings.Theme
Catch ex As Exception
KryptonManager1.GlobalPaletteMode = ComponentFactory.Krypton.Toolkit.PaletteModeManager.Office2007Black
End Try

KryptonComboBox1.Text = My.Settings.SearchEngine
[/code]
That is the load code for the main form

[no name] 28-Aug-12 16:36pm

Check to make sure that your settings file exists on the client machines.

Zack Mcintosh 28-Aug-12 18:38pm

what settings file?

[no name] 28-Aug-12 19:06pm

The one that you reference with My.Settings. Probably your app.config file.

Zack Mcintosh 29-Aug-12 13:55pm

The guy is still getting the same problem.

Joan M 28-Aug-12 15:22pm

You should:

1. put the code of your program here.
1.1 if the program is too big to put it here, then cut out the extra parts.
2. write a better question, showing where the error happen and how.
3. the part with the error details is ok, but not alone.

as general advice:
1. use the debugger, it will show you where the code gets stopped most of times.
2. read the error reports, in this case it is clear that the report states that a file has not been found.
3. nobody will download a complete zip file (that can contain tons of malware) from somebody unknown. Paste parts of code.

If you prepare a good question you'll get great answers.

Good luck with your next questions!

Zack Mcintosh 28-Aug-12 15:41pm

Thanks for the advice. I guess I shoould have mentioned that I am not the one getting the error. I have no problems running my program but when someone else downloads it to use it they have this problem. I figured the System.IO was the part of the error details that was causing it but I am not sure what is doing it in my program. I will just have too try and find it I guess. I do Debug it before I publish it every time.

Joan M 28-Aug-12 15:53pm

Probably you are accessing a file somewhere and the people who don wload the program doesn't have it. Or in the other hand (I don't know if this happens with VB) you could need to imrpove the deployment of your application, there are dependencies and so that probably you are missing.

Good luck!

Zack Mcintosh 28-Aug-12 16:14pm

Thank you for being so polite about this. The only thing this program has to do with reading any file on form load is reading s few files that are online so everyone has access to them. The only other thing I can think of is with newer versions of my program with the auto updater. I have it to delete and download the updater everytime the program opens the 'Check For Updates' form so I can make sure everyone has the latest version of the updater incase I find any bugs in it or make any changes. The code for deleting the old updater is in a try statement so I don't see how it would cause the program to not load if it can't find the file and I know everyone has the updater because it is installed into the directory with the program when someone installs it.

Joan M 29-Aug-12 1:32am

No idea, anyway I've updated your question with all this details in order to allow others to see it and to give their opinion.
Good luck Zack!

3 solutions

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Sandeep Mewara · Answer 1 · 2012-08-28T07:13:00

Solution 1

Problem Signature 09:System.IO.FileNotFoundException
You have not shared too much of an info, but the error has this line that does states that some file is missing that would be required. Looks like program needs a file which is no more there.

Posted 28-Aug-12 7:13am

Sandeep Mewara

Akinmade Bond · Answer 2 · 2012-08-28T07:56:00

Obviously the real error is

C#

System.IO.FileNotFoundException

which occurs when a file cannot be found. Look into your code, maybe you're loading a setting from a file that no longer exists and attempt using

C#

System.IO.File.Exists()

function to detect if that file exists before performing the action and of course if you're just going to create a new file, check that the directory where the file would reside has already been created, and again you can use

C#

System.IO.Directory.Exists()

function.

C#

using System.IO; // Remember to import this namespace.
  if (!Directory.Exists("C:\\My Settings Folder")
            {
                Directory.CreateDirectory("C:\\My Settings Folder");
            }

            if (File.Exists("C:\\My Settings Folder\\My Settings.xml")
            {
                //You can then create a file or load one depending on what you want to do.
            }

Dave Kreskowiak · Answer 3 · 2012-08-28T19:01:00

Another part of your problem, that I'm surprised nobody pointed out, is that you've got a bunch of empty Catch blocks in your code. That just takes any exception generated and swallows it. You'll never know what your code is actually trying to tell you like that.

You really need to put some code in the blocks that logs the exception somewhere so you can refer to it in instances like this where you can't reproduce the problem.

Program crashes when opening

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