Does Qt library cause memory leaks?

I m working on a project and have been asked to check for memory leaks using Valgrind.
Here is the output:

Does Qt library might cause memory leak?

I m working on a project and have been asked to check for memory leaks using Valgrind.
Here is the output:

QtCreator valgrind Memcheck: Error occurred parsing Valgrind output: The remote host closed the connection

Qt Creator 8.0.1
Valgrind 3.18.1-lubuntu2