Not executable at all ("AttributeError")

[guestieng]

Unfortunately, xclingo appears to be not executable at all:

'''

PS> .<xclingo path>\xclingo.exe -n 0 0 .<xclingo root>\examples\dont_drive_drunk.lp
xclingo version 2.0b18
Reading from .<xclingo root>\examples\dont_drive_drunk.lp
Traceback (most recent call last):
File "<frozen runpy>", line 198, in run_module_as_main
File "<frozen runpy>", line 88, in run_code
File "<python root>\Scripts\xclingo.exe_main.py", line 7, in
File "<python root>\Lib\site-packages\xclingo_main.py", line 191, in main
ground_solve_explain(args, unknown_args, programs)
File "<python root>\Lib\site-packages\xclingo_main_.py", line 153, in ground_solve_explain
xclingo_control = init_xclingo_control(args, unknown_args, programs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo_main.py", line 50, in _init_xclingo_control
xclingo_control.add("base", [], program)
File "<python root>\Lib\site-packages\xclingo_main.py", line 72, in add
name, parameters, self.pre_explaining_pipeline.translate(name, program)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo\preprocessor_pipeline.py", line 20, in translate
translation = p.process_program(translation)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo\preprocessor_preprocessor.py", line 64, in process_program
parse_string(
File "<python root>\Lib\site-packages\clingo\ast.py", line 1322, in parse_string
_handle_error(
File "<python root>\Lib\site-packages\clingo_internal.py", line 71, in _handle_error
raise handler.error0.with_traceback(handler.error[2])
File "<python root>\Lib\site-packages\clingo\ast.py", line 1210, in _pyclingo_ast_callback
callback(AST(ast))
File "<python root>\Lib\site-packages\xclingo\preprocessor_preprocessor.py", line 66, in
lambda ast: self._add_to_translation(self.preprocess_rule(ast)),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo\preprocessor_preprocessor.py", line 45, in _add_to_translation
for ra in rule_asts:
File "<python root>\Lib\site-packages\xclingo\preprocessor_preprocessor.py", line 264, in preprocess_rule
for r in self.translate_rule(rule_id, 0, rule_ast.head, rule_ast.body):
File "<python root>\Lib\site-packages\xclingo\preprocessor_preprocessor.py", line 200, in translate_rule
for translated_rule in self._support_translator.translate(
File "<python root>\Lib\site-packages\xclingo\preprocessor_translator.py", line 87, in translate
yield self._rule(
^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo\preprocessor\xclingo_ast_xclingo_ast.py", line 137, in init
super().init(**kwargs)
File "<python root>\Lib\site-packages\xclingo\preprocessor\xclingo_ast_xclingo_ast.py", line 111, in init
super().init(**kwargs)
File "<python root>\Lib\site-packages\xclingo\preprocessor\xclingo_ast_xclingo_ast.py", line 89, in init
super().init(func_name=_SUP_HEAD, **kwargs)
File "<python root>\Lib\site-packages\xclingo\preprocessor\xclingo_ast_xclingo_ast.py", line 80, in init
[rule_id, disjunction_id, head, list(collect_free_vars(body))],
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\xclingo\preprocessor\xclingo_ast_ast_shortcuts.py", line 123, in collect_free_vars
if lit.atom.left.ast_type == ASTType.Variable:
^^^^^^^^^^^^^
File "<python root>\Lib\site-packages\clingo\ast.py", line 970, in getattr
raise AttributeError(f"no attribute: {name}")
AttributeError: no attribute: left
'''

[bramucas]

Hello @guestieng.

Xclingo it is not compatible with clingo >=5.6 versions.

Please install clingo 5.5.something.

[bramucas]

Compatibility with 5.6 will come soon

[guestieng]

Ah, ok, thanks.
Good to know.
Looking forward to 5.6 support.

[bramucas]

Yes! I'll reach you here when it is ready.
Let me know if you have another problem.
And thanks for supporting xclingo!