Thread: dlopen claiming that a linked library does not exist

For the following C program I get the output: "Error: /usr/local/bundle/ruby/3.0.0/gems/mitie-0.2.1/vendor/libmitie.so: cannot open shared object file: No such file or directory", but the file does exist, and seems to be a valid ELF binary (I did my best to verify with realelf).

Code:

#include <stdio.h> 
#include <dlfcn.h> 
 
int main(void) { 
    void *handle = dlopen("/usr/local/bundle/ruby/3.0.0/gems/mitie-0.2.1/vendor/libmitie.so", RTLD_NOW); 
    const char *err = dlerror(); 
 
    if (handle && !err) { 
       printf("Handle: %ld\n", (long int)handle); 
    } 
    else { 
       printf("Error: %s", err); 
    } 
 
    return 0; 
}

Any thoughts? Thank you so much!

I should also note that this is running in a Docker container in a Debian based image.