title: it seems that the version of the libffi library seen at runtime is different from the 'ffi.h' file seen at compile-time
body: <p>This traceback mess up all my program and I still cant fix it I have tried all methods and it didn't help!</p>
  <p>Here's the problem:</p>
  <pre><code>ffi_prep_closure(): bad user_data (it seems that the version of the libffi library seen at runtime is different from the 'ffi.h' file seen at compile-time)
  </code></pre>