Plex refuses to add file with weird boost::filesystem::file_size error

[The_Real_Clipper]

Server Version#: 1.41.7.9823-59f304c16

Hi, I have tried everything including moving, renaming, watching, checking permissions, testing the files with e.g. file, stat, “filebot -mediainfo”, and everything look fine except that Plex refuses to add them. It’s like it can’t open them. Any idea ?

Jun 09, 2025 23:03:23.041 [139907320240952] Info — Library section 1 (Movies) will be updated because of a change in "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD1.mkv"
Jun 09, 2025 23:03:28.043 [139907291679544] Debug — Library Updater: Requested that section 1 be updated, force=0, subdir=/data/media/Movies/Sur la dalle (2024) {tmdb-274950} iTunes=0
Jun 09, 2025 23:03:28.073 [139907384716088] Debug —   * Scanning /data/media/Movies/Sur la dalle (2024) {tmdb-274950}

Jun 09, 2025 23:03:28.074 [139907384716088] Debug — Scanner: Processing directory /data/media/Movies/Sur la dalle (2024) {tmdb-274950} (parent: yes)
Jun 09, 2025 23:03:28.078 [139907384716088] Error — Couldn't get size of file "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD1.mkv": boost::filesystem::file_size: No such file or directory [system:2]: "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD1.mkv"
Jun 09, 2025 23:03:28.079 [139907384716088] Debug — Skipping over directory 'Sur la dalle (2024) {tmdb-274950}', as nothing has changed; removing 0 media items from map.
Jun 09, 2025 23:03:28.080 [139907384716088] Debug — Updating directory 'Sur la dalle (2024) {tmdb-274950}' (ID 555) to time 2025-06-09 23:03:23.
Jun 09, 2025 23:03:31.809 [139907320240952] Info — Library section 1 (Movies) will be updated because of a change in "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD2.mkv"
Jun 09, 2025 23:03:36.815 [139907295898424] Debug — Library Updater: Requested that section 1 be updated, force=0, subdir=/data/media/Movies/Sur la dalle (2024) {tmdb-274950} iTunes=0
Jun 09, 2025 23:03:36.838 [139907384716088] Debug —   * Scanning /data/media/Movies/Sur la dalle (2024) {tmdb-274950}

Jun 09, 2025 23:03:36.839 [139907384716088] Debug — Scanner: Processing directory /data/media/Movies/Sur la dalle (2024) {tmdb-274950} (parent: yes)
Jun 09, 2025 23:03:36.839 [139907384716088] Error — Couldn't get size of file "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD2.mkv": boost::filesystem::file_size: No such file or directory [system:2]: "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD2.mkv"
Jun 09, 2025 23:03:36.839 [139907384716088] Error — Couldn't get size of file "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD1.mkv": boost::filesystem::file_size: No such file or directory [system:2]: "/data/media/Movies/Sur la dalle (2024) {tmdb-274950}/Sur la dalle (2024) - CD1.mkv"
Jun 09, 2025 23:03:36.839 [139907384716088] Debug — Skipping over directory 'Sur la dalle (2024) {tmdb-274950}', as nothing has changed; removing 0 media items from map.
Jun 09, 2025 23:03:36.840 [139907384716088] Debug — Updating directory 'Sur la dalle (2024) {tmdb-274950}' (ID 555) to time 2025-06-09 23:03:31.

[ChuckPa]

Check the permissions IN each directory (to read the files)

Linux allows you to see the names (because it can read the parent directory) but it must also have permissions for the file in order to operate on it.

This is why we often set permissions this way:

# change the default permissions to owner='rwx', everyone else to 'r-x' 
#  'x' means to traverse the directory to subdirectories & files
[root@lizum chuck]# find /disks/media3 -type d -exec chmod 755 {} \;

# change the default permissions to owner= 'rw-',  everyone else 'r-only'
[root@lizum chuck]# find /disks/media3 -type f -exec chmod 644 {} \;