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POSystem.IO.DirectoryNotFoundException after deleting an empty folder and recreating it
 

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    <p>I want to copy a folder, and i want to delete destination folder first. So I am deleting destination folder then recreate it and then copy files. The problem is that i get the <code>An unhandled exception of type 'System.IO.DirectoryNotFoundException' occurred in mscorlib.dll</code> when trying to copy files. This is the code</p> <pre><code>static public void CopyFolder(string sourceFolder, string destFolder) { if (Directory.Exists(destFolder)) // check if folde exist { Directory.Delete(destFolder, true); // delete folder } Directory.CreateDirectory(destFolder); // create folder string[] files = Directory.GetFiles(sourceFolder); foreach (string file in files) { string name = Path.GetFileName(file); string dest = Path.Combine(destFolder, name); File.Copy(file, dest, true); FileInfo fileinfo = new FileInfo(dest); // get file attrib if (fileinfo.Attributes != FileAttributes.ReadOnly) // check if read only File.SetAttributes(dest, FileAttributes.Normal); }....... </code></pre> <p>I get the exception in this line <code>FileInfo fileinfo = new FileInfo(dest);</code>.</p> <p>It seems like there is a delay in the creation of the folder and in the mean time I try to copy a file into it. Any clue, what is the problem? The full exception message:</p> <blockquote> <p>An unhandled exception of type 'System.IO.DirectoryNotFoundException' occurred in mscorlib.dll</p> <p>Additional information: Could not find a part of the path 'C:\Users\joe\Desktop\destfolder\.buildpath'.</p> </blockquote> <h2>SOLUTION</h2> <p>As it been pointed out by good people, the reason for this exception is that I try recreating the folder before the deletion process is finished. So the solution is to add 2 lines of code after deletion: <code> GC.Collect(); GC.WaitForPendingFinalizers(); </code></p> <p>so the correct code will be </p> <pre><code>static public void CopyFolder(string sourceFolder, string destFolder) { if (Directory.Exists(destFolder)) // check if folde exist { Directory.Delete(destFolder, true); // delete folder GC.Collect(); // CODE ADDED GC.WaitForPendingFinalizers(); // CODE ADDED } Directory.CreateDirectory(destFolder); // create folder string[] files = Directory.GetFiles(sourceFolder); foreach (string file in files) { string name = Path.GetFileName(file); string dest = Path.Combine(destFolder, name); File.Copy(file, dest, true); FileInfo fileinfo = new FileInfo(dest); // get file attrib if (fileinfo.Attributes != FileAttributes.ReadOnly) // check if read only File.SetAttributes(dest, FileAttributes.Normal); }....... </code></pre> <p>This way, you wait with the creation until the deletion process is finished. Yhanks everyone and especially Saeed.</p>
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      1. POSystem.IO.DirectoryNotFoundException after deleting an empty folder and recreating it
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    1. COPerhaps only delete the contents of the folder if it exists?
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    2. COAre you sure the file is being copied? I would suggest a bit of debug code where you output the source and destination file names before doing the copy, and then output a message that says, "File copied" after the copy is complete. It seems unlikely that the copy could complete successfully and then the call to `FileInfo` constructor fail.
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      1. POSystem.IO.DirectoryNotFoundException after deleting an empty folder and recreating it
      1. USJim Mischel
    3. COWhen you debug this, what is the value of `dest` on the line which throws the exception? What are the values of other relevant variables?
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      1. USDavid
 

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