File.Copy FileNotFoundException Reported Randomly When It's Never True
Nov 19, 2009
The code is very simple.
If File.Exists(strFileMovingTo) Then File.Delete(strFileMovingTo)
If File.Exists(strFileMovingTo) Then
Call SendEmail(Globals.EmailInternetTeam, "dev-sql@fad.co.uk", "Display Jpg
[Code]....
However a FileNotFoundException exception is thrown during File.Copy even though its wrapped in a If File.Exists ... End If to check its existance.
The great thing is if you run this through the debugger it nearly always works, when released as an app it almost never works.
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Apr 27, 2011
I have some code that seems to work randomly. Sometimes it works and sometimes it does not.
Private Sub SaveTheLabel()
Dim SaveFileName As String
Dim SaveRTB As New RichTextBox
[code].....
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Feb 15, 2012
I have a program that can save user's input into a text file and load it back, but whenever I try to open the file and exit without selecting the file I get an error.(if i select the file and open it i don't get any errors).
This is the code that handles text file loading:
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
OpenFileDialog1.InitialDirectory = "C:"
OpenFileDialog1.Filter = "Text Files ONLY (*.txt) | *.txt"
OpenFileDialog1.ShowDialog()
[CODE]...
The error is :"FileNotFoundException was unhandled. Could not find file at xxx". also I would like to know how to make it so that the initial file name for file saving is today's date. I do not get any errors when I try to save the file.
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Aug 4, 2011
I'm getting a suprising FileNotFoundException although i'm sure that the file exists.I simply wanted to add Logfiles(IO.FileInfo) as attachments to an email, therefore i tried to check the length of every file to detect if they must be added/zipped.This works fine if these files already exist. But if i've created them in this run, i get above exception when i try to check the length. It's oddly enough that i can write into these "not existing" files(actually FileInfo.Exists returns false) without a problem one line before.
Here is some code...
Creating one of the files in the constructor of a class named Log:
Me.LogFile = New IO.FileInfo(infoLogPath)
If Not LogFile.Exists() Then
'tried to use `Using` on the Stream but that doesn't change anything'
[code]....
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Oct 28, 2009
We have a vb application with many forms that contain a "lookup" button that has an icon called find.ico. Once in a while, a user will open one of these forms and get the below error but not every time. Has anyone else run into a similar situation? Since it is not consistent, it's been very difficult to track down.
Exception Source: System.Drawing
Exception Type: System.IO.FileNotFoundException
Exception Message: find.ico
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May 17, 2011
I have a WPF application that has 3 projects in the solution. I have the main menu, which is the actual EXE, a reporting DLL and the application files DLL which both are a WPF Class Library. I'm getting the System.IO error when I'm trying to use a 3rd party reporting tool from in the application files DLL. I have the 3rd party DLLs referenced and are set to copy local in my application DLL. Everything works fine if i reference the 3rd party reporting tool in the EXE project but I don't want to do that. I want my DLL to be stand alone so someone else can reference my DLL without having to add anything but my DLL.
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Jun 28, 2010
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
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Jul 23, 2009
I created a SQL application that synchronises with a SQLCE database when loaded. Works fine on my Dev machine but produces the following error on user machines:
System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Synchronization.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
File name: 'Microsoft.Synchronization.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'
In my attempts to fix, I have:
1) Reinstalled SQL Compact Editon 3.5 on the client machines
2) Reinstalled .NET Framework 3.5
3) Installed Microsoft Sync Framework 1.0 (which puts the 'missing' DLL onto the machines).
This still fails with the same error.
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Jun 30, 2010
Okay I've been wondering about this for a while now, but whenever you assign variable values to objects they tend to just become references to the original object
For example:
Dim copiedCollection As ListBox.ObjectCollection = ListBox1.Items
For Each L As String In copiedCollection
If L = "Goodbye" Then ListBox1.Items.Remove(L)
Next
As soon as it encounters the string "Goodbye" and removes the item from the listbox, the program will throw an error saying the the collection (copiedCollection) has been modified. How can I make copiedCollection a true copy (not a reference) to the Listbox1.Items collection?
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Feb 15, 2010
I have finished coding an application which I designed for people working in my office. When I started to install the application to computers at the office, I realized that, in some machines, application doesn�t work properly. Although it worked for 15 computers perfectly, for 3 computers following error code is displayed:
System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
[code]....
WRN: Assembly binding logging is turned OFF.To enable assembly bind failure logging, set the registry value [HKLMSoftwareMicrosoftFusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.To turn this feature off, remove the registry value [HKLMSoftwareMicrosoftFusion!EnableLog].
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Aug 16, 2011
I'm Re-developing an old VB6 program that I wrote years ago.The program has a "feature" where is shells 6 applications 1 after another, the form hangs whilst it is processing all the commands.Is there a way in .net to "properly" queue a list of commands?I've seen numerous things about WaitForExit - but again this hangs the main form and would like to do it a bit more proper this time round.Can I use Backround Worker for this function or have I completely misunderstood?i can queue all my tasks in background worker and after each exit go onto the next app & report progress back into the main form.Is this the best way of doing this sort of thing?Is there any way to change how progress is reported. [code]
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Aug 5, 2010
I have a program that uses IO.File.Copy to copy files from point a to point b. Its slow, which is fine because there rather large files. I was wondering if there is way to get an estimate time to copy a particular file(s).
Example: File a will take 1 hour to copy, File B will take 30 minutes to copy. Estimate Total Time: 1 hour 30 minutes.
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Dec 5, 2010
Just wondering what browser type the VB.NET reads as when it visits a webpage. For instance on my website it shows a break down of all the different browsers that accessed my site.
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Jun 21, 2012
Right now I have a program that checks login credentials against my Access(2003) database.It works, but the problem I'm having is that it's checking if the file.exist to frequently and with no real pattern. How I'm doing it isI have a My.Setting that saves the file path string as well as the connection string, during form_load I check if the My.Setting path string exist, if not then use an openfiledialog to find the file. Right now I have the database in a public drive, which is why I think that my program thinks that the file doesn't exist sometimes. This is how I'm doing all of the above:
'Some global variables commented out
'Dim log As String = My.Settings.loginStr
'Dim logCon As String = My.Settings.loginCon
[code].....
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Oct 7, 2011
The topic of my project is : Electronic Examination
How to access files randomly from the database in Visual Basic.
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Jan 11, 2011
i wanna read lines from a text file randomly until all the lines are read & wanna set a time interval in each two words apart. think a piece of code to do that in vb.net?
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Jun 17, 2011
I am new in visual basic and I came up with a problem. I have text file with names in it and I want in a textbox everytime the user hits a button randomly choose a name from it.
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Oct 8, 2009
One of them is giving us trouble in only 1 spot out of the 4 spots we use it at:The trouble spot is a windows form project that uses reflection to dynamically load some DLLs that run long running processes. One of these long running processes is an agent that relies on one of our vender DLLsWe're getting the missing assembly exception at the point where we first enter a function that references the library. I already checked the silly things such as if we had forgotten to move a reference from the old version to the new version, but that's not the case. I also checked the bin directory of the project and the assembly is there.
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Feb 14, 2008
I'm having a problem publishing an application written in VB.NET in VS2005 using ClickOnce.I get the error:
Code Snippet
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Jun 25, 2009
I'm trying to download a file using ftp and then using a streamreader to read it and write it to a text file. The problem is, when I download the file and read it, either it did not get all the data or it stops writing the data to the local file and doesnt produce any error, it just sits there. I've tried it with many different files from the ftp site and this always happens.
Private Sub Download(ByVal stateURI As String, ByVal userName As String, ByVal pWord As String)
[code].....
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May 25, 2009
i keep having this error. ERROR: FileNotFoundException was unhandled I want it to display the picture i get it from the database which is the strPic. But i don't know how. And when it run i look at the highlighted error, it link to bindebug ame but my picture is already in there. how can i link the path to the folder i created to put the picture?
[Code]...
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Jan 18, 2012
I have a program that can save user's input into a text file and load it back, but whenever I try to open a text file and exit without selecting the file I get an error.(if i select the file and open it i don't get any errors).
[Code]...
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May 27, 2011
I have a weird behavior when trying to copy a file with System.IO.File.Copy. The file never gets copied. More than that, the call doesn't generate an exeption!
I am using VB.NET, Framework 3.5. I'm trying to copy in C:Temp and I do have the privileges. Or at least I used to...
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Oct 17, 2011
Why do i get this error ?I know the answer is staring me in the face but i cant figgure it out, i have been over the code so many dam times :/See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.IO.FileNotFoundException: The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
[code]......
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Aug 16, 2011
I am modifying an existing application in VB .NET. In one routine, I have added a reference to a class in a newly-referenced class library project that is part of my solution, and now I get run-time FileNotFoundException messages when the program attempts to access this routine while debugging. The error tells me that the class can't be found, what's up with that?
To be clear: If I remove the lines of code relating to the new class, I no longer receive the exception messages. If I add them back in, here they come again! I have referenced the class library in the project containing this routine. The class library is building properly (other projects reference same library, and use it more extensively), and the project is referencing the class library's .dll file in my "debug" folder. I get no errors from other routines that use this new class (thus far). I get no errors in the Error List of the IDE.
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Mar 4, 2012
I am currently writing an app that as a part of it function it has to write a value to the registry in
[Code]....
A first chance exception of type 'System.IO.FileNotFoundException' occurred in WindowsApplication1.exe I am bit confused by this error as I am not accessing any files but editing the registry. I am running Visual Basic 2010 (as administrator), dot net framework 4 on Windows 7.
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Aug 9, 2011
I have an application i built that works fine, the issue is when i try to update it using the updateVB.dll it detects the update but once clicked it pops up with: A first chance exception of type 'System.IO. FileNotFoundException' occurred in mscorlib.dll and doesn't complete the download. I am using Visual studio 2010 Ultimate, my code for the update is: [Code]
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Oct 19, 2010
I need to get a button to enter the applications subfolder and randomly select 1 file to be played in the windows media player COM which i have put in the form. I have tried creating a shuffling playlist but i cant get it to stop after one file is played (it just goes on shuffeling to another file, and i really do not want a playlist). I manage to create a batch file to be started to randomly pick a file in that folder, but when i do this the file is being played in the systems default player..
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Jun 15, 2010
I want to have a text file perhaps a ini file where I want to set a value to either True or False so a boolean. How can I do something like this. I want it to be a in text file so I can change. If it's in settings I'll need to change each users settings I want each user's application to read this text file.
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Feb 24, 2009
Do I have to sign my VB.NET applications? I'm getting an error: SignTool reported an error 'Keyset does not exist' But have no interest in signing anything as the project is small and will only be used internally to my department. I could create a temporary key. But why would I want to?
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