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c++mongodbaccess-violationmongo-cxx-driver

Why is there an access violation on connecting to MongoDB from C++?

When I try to run this little piece of code

#include <iostream>
#include <bsoncxx/builder/stream/document.hpp>
#include <bsoncxx/json.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>

int main(int argc, char **argv)
{
    mongocxx::client client{mongocxx::uri{}};
    mongocxx::database db = client["xyz"];
    std::cout << "Connected to xyz." << std::endl;
}

I always get this warning

Exception thrown at 0x00007FFF7815F1FD (libmongoc-1.0.dll) in Test.exe: 0xC0000005: Access violation writing location 0x0000000000000020.

Can someone help?

Solution

  • I fixed it by adding

    mongocxx::instance instance{};

    as the first line of code in the main function.