Working on a new program to make backups of certain files but it will not open those files. The program starts by reading in a text file with a list of files to backup to the applications directory. The text file loads correctly when the application starts, but when i press on the backup button it gives me an error message: The filename, directory name, or volume label syntax is incorrect.

When I first started creating this app it would only read and copy one out of three files I was using for testing. After changing a few things around to attempt to fix the issue it wont even copy a single file. It is rather confusing on why one instance of QFile works while the other doesn't. I have tried changing the information in the text file from C:/test/filename to C:\test\file C:\\test\\file C://test//file and I get the same error.

Qt Code: 
  1. void SunBak::onBackup()
  2. {
  3.     while (it != FBak.end())
  4.     {
  5.         // Grab file
  6.         QByteArray data;
  7.         QString filename = it->FullPath();
  8.         QMessageBox::information(this, tr("Backing up file."),
  9.                                  tr("%1") .arg(filename));
  10.         QFile file(filename);
  11.         if (!file.open(QIODevice::ReadOnly))
  12.         {
  13.             QMessageBox::information(this, tr("Unable to open file"), file.errorString());
  14.             return;
  15.         }
  16.         data = file.readAll();
  17.         if (data.isEmpty()){  QMessageBox::warning(this, tr("Not reading data!"), tr("What the hell?")); }
  18.         file.close();
  19.  
  20.         filename = it->getFile();
  21.         QMessageBox::information(this, tr("Test:"), tr("%1") .arg(filename));
  22.         QFile fileSave(filename);
  23.         //file.open(QIODevice::WriteOnly);
  24.         if (!fileSave.open(QIODevice::WriteOnly))
  25.         {
  26.             QMessageBox::information(this, tr("Unable to open file"), fileSave.errorString());
  27.             // return;
  28.         }
  29.         if (fileSave.write(data) == -1)
  30.         {
  31.             QMessageBox::critical(this, tr("Error!"), tr("File %1 not written!") .arg(filename));
  32.         }
  33.         it++;
  34.     }
  35. }
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