examples/quickcontrols/filesystemexplorer/filesystemexplorerapp does not run

$ ./filesystemexplorerapp 
QQmlApplicationEngine failed to load component
<Unknown File>: Module "FileSystemModule" contains no type named "Main"

Note: this example is a product of cross-compilation and is running on aarch64. Most examples run fine though, so I'm assuming there is some installation error with this one.