Nuitka: ValueError: _jpype.__spec__ is None when running main.exe

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• Nuitka version:

name:  None
fullname:  nuitka
name:  None
fullname:  nuitka.__main__
0.6.20rc4
Commercial: None
Python: 3.8.12 | packaged by conda-forge | (default, Oct 12 2021, 21:19:05) [MSC v.1916 64 bit (AMD64)]
Flavor: Anaconda Python
Executable: C:\Users\sooraj.a\Anaconda3\envs\pyimagej\python.exe
OS: Windows
Arch: x86_64

• How did you install Nuitka and Python: I used pip inside an anaconda environment.
• To setup my environment and include all modules I use:

conda create -n pyimagej -c conda-forge openjdk=8 pyimagej
conda activate pyimagej

• The specific PyPI names and versions

  It should be taken from this output if there specific packages involved, e.g. numpy, you are expected to shorten this to the relevant ones.

  python -m pip freeze name: None fullname: pip name: None fullname: pip.main certifi==2021.10.8 cycler @ file:///home/conda/feedstock_root/build_artifacts/cycler_1635519461629/work fonttools @ file:///D:/bld/fonttools_1643090960075/work imglyb @ file:///home/conda/feedstock_root/build_artifacts/imglyb_1632508347959/work importlib-metadata @ file:///D:/bld/importlib-metadata_1642514138647/work jgo @ file:///home/conda/feedstock_root/build_artifacts/jgo_1632400948459/work JPype1 @ file:///D:/bld/jpype1_1636588042576/work kiwisolver @ file:///D:/bld/kiwisolver_1635836839743/work matplotlib @ file:///D:/bld/matplotlib-suite_1639359275746/work munkres==1.1.4 Nuitka @ https://github.com/Nuitka/Nuitka/archive/develop.zip numpy @ file:///D:/bld/numpy_1643009390959/work olefile @ file:///home/conda/feedstock_root/build_artifacts/olefile_1602866521163/work packaging @ file:///home/conda/feedstock_root/build_artifacts/packaging_1637239678211/work pandas @ file:///D:/bld/pandas_1642871738130/work Pillow @ file:///D:/bld/pillow_1636558975346/work psutil @ file:///D:/bld/psutil_1640887336249/work pyimagej @ file:///D:/bld/pyimagej_1636821600677/work pyparsing @ file:///home/conda/feedstock_root/build_artifacts/pyparsing_1642753572664/work PyQtWebEngine==5.15.4 PyQtWebEngine-Qt5==5.15.2 python-dateutil @ file:///home/conda/feedstock_root/build_artifacts/python-dateutil_1626286286081/work pytz @ file:///home/conda/feedstock_root/build_artifacts/pytz_1633452062248/work scyjava @ file:///home/conda/feedstock_root/build_artifacts/scyjava_1638980239838/work six @ file:///home/conda/feedstock_root/build_artifacts/six_1620240208055/work typing_extensions @ file:///home/conda/feedstock_root/build_artifacts/typing_extensions_1638334978229/work unicodedata2 @ file:///D:/bld/unicodedata2_1640031186081/work xarray @ file:///home/conda/feedstock_root/build_artifacts/xarray_1643438115178/work zipp @ file:///home/conda/feedstock_root/build_artifacts/zipp_1641731510635/work

• My code is in main.py which looks like this:

import imagej
import os
ij = imagej.init('2.1.0')
print(ij.getVersion())
ij.dispose()

• then I ran the following nuitka command: nuitka --standalone --show-progress --enable-plugin=numpy --include-data-file=C:\Users\sooraj.a\Anaconda3\envs\pyimagej\Lib\site-packages\org.jpype.jar=.\org.jpype.jar .\main.py

• now I run main.exe inside main.dist and get the following error:

Traceback (most recent call last):
  File "C:\Users\sooraj.a\WORK_S~1\TESTNU~1\MAIN~2.DIS\main.py", line 9, in <module>
  File "C:\Users\sooraj.a\WORK_S~1\TESTNU~1\MAIN~2.DIS\imagej\__init__.py", line 165, in init
  File "C:\Users\sooraj.a\WORK_S~1\TESTNU~1\MAIN~2.DIS\scyjava\__init__.py", line 59, in start_jvm
  File "C:\Users\sooraj.a\WORK_S~1\TESTNU~1\MAIN~2.DIS\jpype\_core.py", line 226, in startJVM
  File "C:\Users\sooraj.a\WORK_S~1\TESTNU~1\MAIN~2.DIS\importlib\util.py", line 120, in find_spec
ValueError: _jpype.__spec__ is None