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bw2setup()执行遇ValueError:无法识别基础流标识符求助

Brightway2 LCA建模初始化报错问题

我刚开始使用Brightway2进行LCA建模,执行以下代码时出现错误:

if any("biosphere" in db for db in bd.databases):
    print('Biosphere is already present in the project.')
else:
    bi.bw2setup()

错误信息如下:

Traceback (most recent call last):
  File "<string>", line 4, in <module>
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2io\__init__.py", line 165, in bw2setup
    create_default_lcia_methods()
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2io\__init__.py", line 147, in create_default_lcia_methods
    ei.write_methods(overwrite=overwrite)
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2io\importers\base_lcia.py", line 77, in write_methods
    method.write(self._reformat_cfs(ds["exchanges"]))
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2data\method.py", line 115, in write
    data = [normalize_ids(line) for line in data]
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2data\method.py", line 115, in <listcomp>
    data = [normalize_ids(line) for line in data]
            ^^^^^^^^^^^^^^^^^^^
  File "C:\PROGRA~3\ANACON~1\envs\env_bw25\Lib\site-packages\bw2data\method.py", line 109, in normalize_ids
    raise ValueError(
ValueError: Can't understand elementary flow identifier ['biosphere3', '9990b51b-7023-4700-bca0-1a32ef921f74'] in data line (['biosphere3', '9990b51b-7023-4700-bca0-1a32ef921f74'], 1.6)

执行bd.methods时显示“Methods dictionary with 1 object(s)”,我认为该问题与此相关,已遵循Brightway2入门教程的步骤操作,恳请提供帮助或建议。

内容的提问来源于stack exchange,提问作者rez

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最近更新时间:2026.06.13 00:42:20