我想我遇到了同样的问题。
Qt WebEngine Plugins directory not found. Trying fallback directory... Plugins as for example video codecs MAY NOT work.
Error in finalize query "attempt to write a readonly database" : "BEGIN EXCLUSIVE"
Error in open database "unable to open database file" : "/home/user/.local/share/data/Mendeley Ltd./Mendeley Desktop/www.mendeley.com/user@mail.com-f453/search-index.sqlite"
Failed to open search index
Error in prepare query "unable to open database file" : "SELECT value FROM UpdateTokens WHERE key = :key"
Error in bind value "no statement prepared"
Error in execute query "query not prepared"
Error in step query "query not active"
QObject::disconnect: Unexpected null parameter
我认为问题在于存储我的 mendeley 数据库的文件夹更改了名称(不知道为什么)。为了解决这个问题,我刚刚删除了文件夹 /home/user/.local/share/Mendeley Ltd. 并再次启动 mendeleydesktop 以便再次创建文件夹(您的文件必须再次同步)。