Partition is mounted read-only on UT, you cannot write everywhere, there are default writeable directories though available with your app namespace by using QStandardPath api QStandardPaths::AppDataLocation -> ~./local/share/yourappnamespace QStandardPaths::CacheLocation -> ~.cache/yourappnamespace see http://docs.ubports.com/en/latest/appdev/guides/writeable-dirs.html

Finally, it can be used! build ffmpeg_lib to ubports!

@wangqinfeng said in QDir::entryInfoList() return is 0?: @dobey Thank you! I want to use my app like a computer! Apps are confined on the phone and cannot access arbitrary files or directories outside of the app's confinement. You say you want to use it to manage the server, so is what you want to access the root filesystem on that server, rather than on your phone? Or are you trying to turn your phone into some sort of server? It's difficult to provide direction, when we can't understand what you're trying to do exactly.