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Fixing a Missing Rohon Shared Library on Ubuntu

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Summary

This forum exchange describes an Ubuntu installation problem when importing VeighNa’s Rohon trading interface. The reported error says that the system cannot locate the Rohon shared library after the Python package was installed and vendor-provided files were copied into its API directory. The eventual solution was to add that API directory to the dynamic linker’s library search path through the LD_LIBRARY_PATH environment variable.

The thread gives one user’s working fix for a specific package version and environment, including a directory under a Conda environment. It does not explain why the library path was missing, whether other installation layouts need a different path, or how to make the setting persistent across sessions. The discussion is technical setup guidance for users of this interface, not trading methodology or evidence about market behavior.

Key ideas

  • The reported import failure occurred because Ubuntu could not find the Rohon shared library.
  • The user resolved the issue by adding the interface API directory to the dynamic library search path.
  • The example path belongs to a particular Conda environment and may differ across installations.
  • The forum does not describe a general diagnostic process or confirm the fix across other systems.

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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.