"_sqlite3_step", referenced from:

Can't say much more about this, because I have no idea at all, at all, how to solve this: I mean, please don't take this badly and give me a downvote, but this error really doesn't make sense. I've searched everywhere, but I've found nothing.

  "_OBJC_CLASS_$_CMMotionManager", referenced from:
  "_sqlite3_bind_blob", referenced from:
  "_sqlite3_bind_double", referenced from:
  "_sqlite3_bind_int64", referenced from:
  "_sqlite3_bind_null", referenced from:
  "_sqlite3_bind_parameter_count", referenced from:
  "_sqlite3_bind_text", referenced from:
  "_sqlite3_clear_bindings", referenced from:
  "_sqlite3_close", referenced from:
  "_sqlite3_column_blob", referenced from:
  "_sqlite3_column_bytes", referenced from:
  "_sqlite3_column_count", referenced from:
  "_sqlite3_column_double", referenced from:
  "_sqlite3_column_int", referenced from:
  "_sqlite3_column_int64", referenced from:
  "_sqlite3_column_name", referenced from:
  "_sqlite3_column_text", referenced from:
  "_sqlite3_column_type", referenced from:
  "_sqlite3_errmsg", referenced from:
  "_sqlite3_finalize", referenced from:
  "_sqlite3_open", referenced from:
  "_sqlite3_prepare_v2", referenced from:
  "_sqlite3_reset", referenced from:
  "_sqlite3_step", referenced from:

clang: error: linker command failed with exit code 1 (use -v to see invocation)