[ruby-core:117351] embedd ruby 3.3.0 - unknown Time.now class method

Hi, I want to embedd the ruby 3.3.0 interpreter into my application by using the following code:   int error, n;   static char* args[] = {};   n = 0;   ruby_sysinit(&n, (char ***)&args);   RUBY_INIT_STACK;   ruby_init();   ruby_init_loadpath();   rb_eval_string_protect("p Time.now", &error);   if(error) {     rb_eval_string("p :ERROR"); } In principle it does work. However, the Time class is missing the now method, thus a :ERROR is printed. What it missing in the above code ?