无法使文件java.io.IOException：没有这样的文件或目录

我正在尝试在文件系统上创建一个文件，但我一直遇到这个异常：

I am trying to create a file on the filesystem, but I keep getting this exception:

java.io.IOException: No such file or directory

我有一个现有目录，我正在尝试写一个文件到那个目录。

I have an existing directory, and I am trying to write a file to that directory.

// I have also tried this below, but get same error
// new File(System.getProperty("user.home") + "/.foo/bar/" + fileName);

File f = new File(System.getProperty("user.home") + "/.foo/bar/", fileName);

if (f.exists() && !f.canWrite())
        throw new IOException("Kan ikke skrive til filsystemet " + f.getAbsolutePath());

if (!f.isFile()) {
    f.createNewFile(); // Exception here
} else {
    f.setLastModified(System.currentTimeMillis());
}

获得例外：

java.io.IOException: No such file or directory
  at java.io.UnixFileSystem.createFileExclusively(Native Method)
  at java.io.File.createNewFile(File.java:883)`

我对路径有写权限，但文件不是'创建。

I have write permission to the path, however the file isn't created.