Content of local workspace is empty and created KNIME workflow not visible

Hello community,

When I log in KNIME my local workspace is empty and the workflow I created is not visible.

afbeelding

Among other I saw the following error message in the console window. The error message is to cryptic to understand any word of it. I have installed KNIME 5.1 on laptop running windows Editie Windows 10 Enterprise, Version 22H2, Installationdate 23-‎11-‎2022, Build 19045.3448
, Windows Feature Experience Pack 1000.19044.1000.0

Error message:

ERROR PurePythonNodeSetFactory Failed to parse Python node extension at path ‘C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\graudata.mdh_extension_1.0.0.202308210900\src\main\python’.
An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):
File “C:\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\graudata.mdh_extension.channel.bin.win32.x86_64_1.0.0.202308210900\env\Lib\site-packages\py4j\clientserver.py”, line 617, in _call_proxy
return_value = getattr(self.pool[obj_id], method)(*params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\org.knime.python3.nodes_5.1.1.v202309080842\src\main\python_node_backend_launcher.py”, line 841, in loadExtension
raise RuntimeError(
RuntimeError: Failed to load extension graudata.mdh_extension from extension with error: Traceback (most recent call last):
File “C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\org.knime.python3.nodes_5.1.1.v202309080842\src\main\python_node_backend_launcher.py”, line 836, in loadExtension
importlib.import_module(extension_module)
ModuleNotFoundError: No module named ‘grp’
ERROR PurePythonNodeSetFactory Failed to parse Python node extension at path ‘C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\graudata.mdh_extension_1.0.0.202308210900\src\main\python’.
An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):
File “C:\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\graudata.mdh_extension.channel.bin.win32.x86_64_1.0.0.202308210900\env\Lib\site-packages\py4j\clientserver.py”, line 617, in _call_proxy
return_value = getattr(self.pool[obj_id], method)(*params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\org.knime.python3.nodes_5.1.1.v202309080842\src\main\python_node_backend_launcher.py”, line 841, in loadExtension
raise RuntimeError(
RuntimeError: Failed to load extension graudata.mdh_extension from extension with error: Traceback (most recent call last):
File “C:\Program Files\KNIME51....\Users\875009.eclipse\524691596_win32_win32_x86_64\plugins\org.knime.python3.nodes_5.1.1.v202309080842\src\main\python_node_backend_launcher.py”, line 836, in loadExtension
importlib.import_module(extension_module)
ModuleNotFoundError: No module named ‘grp’
WARN File Reader (deprecated) 2:4:4 Unable to write to file <local workspace directory)

Any help is appreciated.

Regards

EdeReeder

I’ve got the same error under windows 10 with the last 5.2 knime version :
ERROR PurePythonNodeSetFactory Failed to parse Python node extension at path ‘G:\knime52\knime_5.2.0\plugins\graudata.mdh_extension_1.0.0.202312061502\src\main\python’.
An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\bundling\envs\graudata_mdh_extension\Lib\site-packages\py4j\clientserver.py”, line 617, in _call_proxy
return_value = getattr(self.pool[obj_id], method)(*params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 903, in loadExtension
raise RuntimeError(
RuntimeError: Failed to load extension graudata.mdh_extension from extension with error: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 898, in loadExtension
importlib.import_module(extension_module)
ModuleNotFoundError: No module named ‘grp’
ERROR PurePythonNodeSetFactory Failed to parse Python node extension at path ‘G:\knime52\knime_5.2.0\plugins\graudata.mdh_extension_1.0.0.202312061502\src\main\python’.
An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\bundling\envs\graudata_mdh_extension\Lib\site-packages\py4j\clientserver.py”, line 617, in _call_proxy
return_value = getattr(self.pool[obj_id], method)(*params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 903, in loadExtension
raise RuntimeError(
RuntimeError: Failed to load extension graudata.mdh_extension from extension with error: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 898, in loadExtension
importlib.import_module(extension_module)
ModuleNotFoundError: No module named ‘grp’
ERROR PurePythonNodeSetFactory Failed to parse Python node extension at path ‘G:\knime52\knime_5.2.0\plugins\graudata.mdh_extension_1.0.0.202312061502\src\main\python’.
An exception was raised by the Python Proxy. Return Message: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\bundling\envs\graudata_mdh_extension\Lib\site-packages\py4j\clientserver.py”, line 617, in _call_proxy
return_value = getattr(self.pool[obj_id], method)(*params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 903, in loadExtension
raise RuntimeError(
RuntimeError: Failed to load extension graudata.mdh_extension from extension with error: Traceback (most recent call last):
File “G:\knime52\knime_5.2.0\plugins\org.knime.python3.nodes_5.2.0.v202311290857\src\main\python_node_backend_launcher.py”, line 898, in loadExtension
importlib.import_module(extension_module)
ModuleNotFoundError: No module named ‘grp’

@Fabien_Couprie @reedere maybe you could provide us with more details about your configuration and an attached log file in debug mode.