Trouble reinstalling

iansoady · Today, 11:35 AM

I've had various error messages (which sadly I've omitted to save) so decided to completely remove Calibre (using Revo uninstaller) and reinstall. Using Windows 10 up to date version. All went OK till I tried to open Calibre and got the message:

calibre, version 9.18.0
ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click "Show details" to learn more.

Traceback (most recent call last):
File "calibre\gui2\main.py", line 361, in initialize_db_stage2
File "calibre\gui2\main.py", line 298, in start_gui
File "calibre\gui2\ui.py", line 187, in __init__
File "calibre\gui2\ui.py", line 223, in load_store_plugins
File "calibre\gui2\store\loader.py", line 68, in builtins_loaded
File "calibre\utils\config.py", line 339, in __init__
File "calibre\utils\config.py", line 370, in refresh
File "calibre\utils\config_base.py", line 450, in read_data
File "calibre\utils\config_base.py", line 428, in retry_on_fail
File "calibre\utils\config_base.py", line 447, in r
PermissionError: [Errno 13] Permission denied: 'C:\\Users\\ian\\AppData\\Roaming\\calibre\\store\ \plugin_cache.json'

Any suggestions? I've been using Calibre for decades with no problems at all.

dunhill · Today, 01:47 PM

That error is due to Windows permissions. Revo Uninstaller likely left behind remnants of the old Calibre configuration, which the new Calibre can't access.
Try restarting your PC.
In File Explorer, type %APPDATA%\calibre and press Enter. Delete only the store folder. It only stores temporary data for book stores, so nothing will be lost.
Open Calibre; it will recreate the folder.

Today, 11:35 AM	#1
iansoady Enthusiast Posts: 31 Karma: 10 Join Date: Jun 2011 Device: Kindle 4.1.4	Trouble reinstalling I've had various error messages (which sadly I've omitted to save) so decided to completely remove Calibre (using Revo uninstaller) and reinstall. Using Windows 10 up to date version. All went OK till I tried to open Calibre and got the message: calibre, version 9.18.0 ERROR: Startup error: There was an error during calibre startup. Parts of calibre may not function. Click "Show details" to learn more. Traceback (most recent call last): File "calibre\gui2\main.py", line 361, in initialize_db_stage2 File "calibre\gui2\main.py", line 298, in start_gui File "calibre\gui2\ui.py", line 187, in __init__ File "calibre\gui2\ui.py", line 223, in load_store_plugins File "calibre\gui2\store\loader.py", line 68, in builtins_loaded File "calibre\utils\config.py", line 339, in __init__ File "calibre\utils\config.py", line 370, in refresh File "calibre\utils\config_base.py", line 450, in read_data File "calibre\utils\config_base.py", line 428, in retry_on_fail File "calibre\utils\config_base.py", line 447, in r PermissionError: [Errno 13] Permission denied: 'C:\\Users\\ian\\AppData\\Roaming\\calibre\\store\ \plugin_cache.json' Any suggestions? I've been using Calibre for decades with no problems at all.

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Today, 01:47 PM	#2
dunhill Wizard Posts: 1,219 Karma: 1513034 Join Date: Sep 2017 Location: Buenos Aires, Argentina Device: moon+ reader, kindle paperwhite, Linux Mint	That error is due to Windows permissions. Revo Uninstaller likely left behind remnants of the old Calibre configuration, which the new Calibre can't access. Try restarting your PC. In File Explorer, type %APPDATA%\calibre and press Enter. Delete only the store folder. It only stores temporary data for book stores, so nothing will be lost. Open Calibre; it will recreate the folder.

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