Trouble reinstalling

[iansoady]

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.