sencha app watch raising exception

Hi, I've just created an app with SenchaCmd-5.1.1.39-linux-x64.run, following each step of the documentation. Nothing more.

When I try to launch watch (root user) I get this:

[ERR] /web/htdocs/olivier/wogwog/g/app/view/main/4913

at com.sencha.exceptions.BasicException.wrap(BasicException.java:54)

at com.sencha.exceptions.BasicException.stealthify(BasicException.java:43)

at com.sencha.exceptions.BasicException.raise(BasicException.java:35)

at com.sencha.tools.watchers.NotificationFileWatcherService.registerAndDescend(NotificationFileWatcherService.java:417)

at com.sencha.tools.watchers.NotificationFileWatcherService.processWatchKey(NotificationFileWatcherService.java:222)

at com.sencha.tools.watchers.NotificationFileWatcherService.run(NotificationFileWatcherService.java:166)

at com.sencha.tools.watchers.BaseFileWatcherService$1.run(BaseFileWatcherService.java:31)

at com.sencha.util.ThreadUtil$1.run(ThreadUtil.java:143)

at java.lang.Thread.run(Thread.java:745)

Caused by: /web/htdocs/olivier/wogwog/g/app/view/main/4913

at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)

at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)

at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)

at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)

at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)

at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:97)

at java.nio.file.Files.readAttributes(Files.java:1686)

at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:105)

at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:69)

at java.nio.file.Files.walkFileTree(Files.java:2602)

at java.nio.file.Files.walkFileTree(Files.java:2635)

at com.sencha.tools.watchers.NotificationFileWatcherService.registerAndDescend(NotificationFileWatcherService.java:404)

at com.sencha.tools.watchers.NotificationFileWatcherService.processWatchKey(NotificationFileWatcherService.java:222)

at com.sencha.tools.watchers.NotificationFileWatcherService.run(NotificationFileWatcherService.java:166)

at com.sencha.tools.watchers.BaseFileWatcherService$1.run(BaseFileWatcherService.java:31)

at com.sencha.util.ThreadUtil$1.run(ThreadUtil.java:143)

at java.lang.Thread.run(Thread.java:745)

sencha app watch raising exception