[Divingduck]

It seems there is nothing in. I become this short time after starting the GUI (~5 to 8 sec) with more or less nothing in the log file. Then I try to start the server from GUI via connect/share and get the error again w/o additional info in the log file

Spoiler:

calibre, version 2.99.6
FEHLER: Inhalteserver konnte nicht gestartet werden: Inhalteserver konnte nicht gestartet werden. Fehler:

[Errno 13] Permission denied: u'C:\\Program Files\\Calibre2\\app\\resources\\content-server\\index-generated.html.tmp'

Then I took the way via preferences and do not get any warnings (start botton change to gray but no server access and the following in the log.

Spoiler:

calibre Fehlerdiagnoseprotokoll
calibre 2.99.6* [64bit]  embedded-python: True is64bit: True
Windows-10-10.0.14393-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.14393')
Python 2.7.12+
Windows: ('10', '10.0.14393', 'SP0', u'Multiprocessor Free')
Successfully initialized third party plugins: DeDRM (6, 5, 3) && EpubMerge (2, 1, 0) && Goodreads (1, 1, 12) && EpubSplit (2, 2, 0) && Wiki Reader (2, 1, 0) && Annotations (1, 4, 11) && Extract ISBN (1, 4, 4) && KoboTouchExtended (2, 8, 2) && Open With (1, 5, 10) && Library Codes (1, 0, 30) && food network Recipe Reader (1, 0, 2) && Modify ePub (1, 3, 13) && Media File Importer (1, 0, 19) && ScrambleEbook (0, 0, 5) && Quality Check (1, 9, 11) && Search The Internet (1, 7, 6) && Job Spy (1, 0, 55) && Generate Cover (1, 5, 21) && Goodreads Sync (1, 10, 1) && Count Pages (1, 7, 0) && KindleUnpack - The Plugin (0, 81, 4) && Diaps Editing Toolbag (0, 3, 4) && Favourites Menu (1, 0, 4) && Find Duplicates (1, 6, 2) && Import List (1, 1, 5) && Manage Sony x50 Reader Book List (1, 2, 11) && BOL_DE (0, 7, 5)
calibre 2.99.6* [64bit]  embedded-python: True is64bit: True
Windows-10-10.0.14393-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.14393')
Python 2.7.12+
Windows: ('10', '10.0.14393', 'SP0', u'Multiprocessor Free')
Successfully initialized third party plugins: DeDRM (6, 5, 3) && EpubMerge (2, 1, 0) && Goodreads (1, 1, 12) && EpubSplit (2, 2, 0) && Wiki Reader (2, 1, 0) && Annotations (1, 4, 11) && Extract ISBN (1, 4, 4) && KoboTouchExtended (2, 8, 2) && Open With (1, 5, 10) && Library Codes (1, 0, 30) && food network Recipe Reader (1, 0, 2) && Modify ePub (1, 3, 13) && Media File Importer (1, 0, 19) && ScrambleEbook (0, 0, 5) && Quality Check (1, 9, 11) && Search The Internet (1, 7, 6) && Job Spy (1, 0, 55) && Generate Cover (1, 5, 21) && Goodreads Sync (1, 10, 1) && Count Pages (1, 7, 0) && KindleUnpack - The Plugin (0, 81, 4) && Diaps Editing Toolbag (0, 3, 4) && Favourites Menu (1, 0, 4) && Find Duplicates (1, 6, 2) && Import List (1, 1, 5) && Manage Sony x50 Reader Book List (1, 2, 11) && BOL_DE (0, 7, 5)
Turning on automatic hidpi scaling
devicePixelRatio: 1.0
logicalDpi: 96.0 x 96.0
physicalDpi: 90.0253164557 x 90.1013513514
Using calibre Qt style: True
Starting up...
EpubMerge: DEBUG: 2017-05-26 19:11:36,803: calibre_plugins.epubmerge.epubmerge_plugin(152): macmenuhack file_path:C:\Users\Armin\AppData\Roaming\calibre\plugins\fanficfare_macmenuhack.txt
Calibre, and hence Job Spy, was gracefully shut down last time?  True
Last time daemon started:  Thu Feb 16 09:34:56 2017
Last time daemon failed:  never
Total daemon starts inception_to_date:  1
Total daemon failures inception-to-date:  0
Job Spy has finished initialization...
DEBUG:    0.0 HttpHelper::__init__: proxy=None
C:\Program Files\Calibre2\app\pylib.zip\dateutil\parser.py:601: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
Started up in 173.89 seconds with 3526 books
MFI self.tmp_directory never used; returning True for shutdown.

Originally Posted by kovidgoyal

@DD: I'll need the log from when the error occurs. Did the error occur in this session, becaue I can see no trace of it in the log.