roots.pem not found error

i get an error when i try to run main.exe, it says roots.pem not found
error
convai-sdk-cpp\bazel-convai-sdk-cpp\external\com_github_grpc_grpc\src\core\lib\security\security_connector\ssl_utils.cc
line 608
GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(installed_roots_path, 1, &result));

so i changed line 60 to this and now it works
static const char* installed_roots_path = "C:/Users/akshit/Downloads/convai-sdk-cpp/bazel-convai-sdk-cpp/external/com_github_grpc_grpc/etc/roots.pem";