Windows 10 - Calibre 5.71
When I add books or export data through a batch file, I get this error message (since calibre v5.xx) :
Code:
Could not contact the running instance of calibre (<-- free translation from french...)
Failed to connect to Listener at: \\.\pipe\CalibreGUI-adminx with error: QLocalSocket::connectToServer: Invalid name
QWidget: Must construct a QApplication before a QWidget
Despite this message, everything works as expected: books are added, exports are done correctly, so I just wanted to point out this little problem.