Error in xml schema when doing L3_Process

Can anybody help me? Thanks very much!

Error in xml schema, see report file for details.
Parsing error:
Schema file: L3_GIPP.xsd
Details: Failed to locate the main schema resource at ‘C:\Users\LuoChang\myvenv\env\Lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\cfg\L3_GIPP.xsd’.

Sentinel-2 Level 3 Processor (Sen2Three), 1.2.0, created: 2019.01.31 started with 20m resolution …
Error in xml schema, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_PDI_Level-2A_Datastrip_Metadata.xsd
Details: Failed to locate the main schema resource at ‘C:\Users\LuoChang\myvenv\env\Lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\cfg\S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_PDI_Level-2A_Datastrip_Metadata.xsd’.
Error in xml schema, see report file for details.
Parsing error:
Schema file: S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_User_Product_Level-2A_Metadata.xsd
Details: Failed to locate the main schema resource at ‘C:\Users\LuoChang\myvenv\env\Lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\cfg\S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_User_Product_Level-2A_Metadata.xsd’.
Traceback (most recent call last):
File “F:\Anaconda\envs\py27\Scripts\L3_Process-script.py”, line 11, in
load_entry_point(‘sen2three==1.2.0’, ‘console_scripts’, ‘L3_Process’)()
File “F:\Anaconda\envs\py27\lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\L3_Process.py”, line 265, in main
processor = doTheLoop(config)
File “F:\Anaconda\envs\py27\lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\L3_Process.py”, line 171, in doTheLoop
product.updateUserProduct(L2A_UP_ID)
File “F:\Anaconda\envs\py27\lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\L3_Product.py”, line 737, in updateUserProduct
if self.existL3_TargetProduct(userProduct) == False:
File “F:\Anaconda\envs\py27\lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\L3_Product.py”, line 107, in existL3_TargetProduct
return self.createL3_TargetProduct()
File “F:\Anaconda\envs\py27\lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\L3_Product.py”, line 244, in createL3_TargetProduct
copy_file(os.path.join(self.config.configDir, upScheme3), os.path.join(L3_TARGET_DIR, REP_INFO, basename))
File “F:\Anaconda\envs\py27\lib\distutils\file_util.py”, line 110, in copy_file
"can’t copy ’s': doesn't exist or not a regular file" src)
distutils.errors.DistutilsFileError: can’t copy ‘C:\Users\LuoChang\myvenv\env\Lib\site-packages\sen2three-1.2.0-py2.7.egg\sen2three\cfg\S2-PDGS-TAS-DI-PSD-V14.2_Schema\S2_User_Product_Level-3_Metadata.xsd’: doesn’t exist or not a regular file

would you please to share the xml file, or the other option

Did you try up sen2three directly in SNAP? , Does give you any error?