GEM
Classes
Diagrams error (with plantuml command): Feb 08, 2026 5:39:55 PM java.util.prefs.FileSystemPreferences$1 run WARNING: Couldn't create user preferences directory. User preferences are unusable. Feb 08, 2026 5:39:55 PM java.util.prefs.FileSystemPreferences$1 run WARNING: java.io.IOException: No such file or directory Error line 1 in file: /tmp/diagrams_in24958ab1a20e.plantuml Some diagram description contains errors Feb 08, 2026 5:39:57 PM java.util.prefs.FileSystemPreferences checkLockFile0ErrorCode WARNING: Could not lock User prefs. Unix error code 2. Feb 08, 2026 5:39:57 PM java.util.prefs.FileSystemPreferences syncWorld WARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.