Getting error on files.readAllLines

I am working in android. For reading the file content, I am using the method

List<String> lines = Files.readAllLines(wiki_path);

But whem I am using this method I am getting this error:

The method readAllLines(Path) is undefined for the type MediaStore.Files.

Why can the compiler not find the method?

Path wiki_path = Paths.get("C:/tutorial/wiki", "wiki.txt");

try {
    List<String> lines = Files.readAllLines(wiki_path);
    for (String line : lines) {

        if(url.contains(line))
        {
            other.put(TAG_Title, name);
            other.put(TAG_URL, url);
            otherList.add(other);
            break;
        }
    }
}