About linux : Problem-while-bundling-pythonnet-project-into-executable-file-on-Ubuntu1804

I have a VSCode project which used python and .NET intergration (With pythonnet) under Windows10, and it runs successfully both in VSCode debug mode and bundle mode (pyinstaller). Now I want to implement the project on Ubuntu18.04 with following configuration:

1. Python version: 3.6.9
2. mono version: 6.12.0.122
3. pythonnet version: 2.5.2
4. dotnet version: 3.1.416

After the preparation for pythonnet is finished, I also create a VSCode project on Ubuntu and run the code successfully in debug mode. But when I tried to use pyinstaller to create a bundled executable file, it did not work successfully:

[email protected]:~/Workspace/temp/bab_debugger_v2p0_2022010101/ui_python/dist$ ./bab_debugger_v2p0
Press any key to continue ...

Output information:

Traceback (most recent call last):
  File "bab_debugger_v2p0.py", line 35, in <module>
ImportError: System.TypeInitializationException: The type initializer for 'Sys' threw an exception. ---> System.DllNotFoundException: /usr/lib/../lib/libmono-native.so assembly:<unknown assembly> type:<unknown type> member:(null)
  at (wrapper managed-to-native) Interop+Sys.LChflagsCanSetHiddenFlag()
  at Interop+Sys..cctor () [0x00000] in <533173d24dae460899d2b10975534bb0>:0 
   --- End of inner exception stack trace ---
  at Interop.GetRandomBytes (System.Byte* buffer, System.Int32 length) [0x00000] in <533173d24dae460899d2b10975534bb0>:0 
  at System.Guid.FastNewGuidArray () [0x00020] in <533173d24dae460899d2b10975534bb0>:0 
  at System.Reflection.Emit.ModuleBuilder..ctor (System.Reflection.Emit.AssemblyBuilder assb, System.String name, System.String fullyqname, System.Boolean emitSymbolInfo, System.Boolean transient) [0x00035] in <533173d24dae460899d2b10975534bb0>:0 
  at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule (System.String name, System.String fileName, System.Boolean emitSymbolInfo, System.Boolean transient) [0x0005b] in <533173d24dae460899d2b10975534bb0>:0 
  at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule (System.String name) [0x00000] in <533173d24dae460899d2b10975534bb0>:0 
  at Python.Runtime.CodeGenerator..ctor () [0x0002b] in <2b91d2ccf0934488b2c125769adaa0cc>:0 
  at Python.Runtime.DelegateManager..ctor () [0x00061] in <2b91d2ccf0934488b2c125769adaa0cc>:0 
  at Python.Runtime.PythonEngine.Initialize (System.Collections.Generic.IEnumerable`1[T] args, System.Boolean setSysArgv, System.Boolean initSigs) [0x0000a] in <2b91d2ccf0934488b2c125769adaa0cc>:0 
  at Python.Runtime.PythonEngine.Initialize (System.Boolean setSysArgv, System.Boolean initSigs) [0x00005] in <2b91d2ccf0934488b2c125769adaa0cc>:0 
  at Python.Runtime.PythonEngine.InitExt () [0x00000] in <2b91d2ccf0934488b2c125769adaa0cc>:0 
[14057] Failed to execute script 'bab_debugger_v2p0' due to unhandled exception!

I check the code of bab_debugger_v2p0.py file and the contents of line 35 is “import clr”. It seems like the mono is not integrated into the bundled file successfully. I tried to add libmono-native.so by modifying the bab_debugger_v2p0.spec file but the result is still the same. How can I bundle the pythonnet project with mono correctly by using pyinstaller on Ubuntu? Or is there any other tools which can make correct bundling?