Trying to upgrade from V11 to 12.
Have tried various methods so far.
I have got over loads of issues but now stuck on this one while using 2 different methods.
Upgrading from working V11 database.
I think it is something to do with item valuation method
Executing erpnext.patches.v12_0.move_item_tax_to_item_tax_template in site1.local (_1bd3e0294da19198)
Traceback (most recent call last):
File “/usr/lib/python3.6/runpy.py”, line 193, in _run_module_as_main
“main”, mod_spec)
File “/usr/lib/python3.6/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 97, in
main()
File “/home/frappe/frappe-bench/apps/frappe/frappe/utils/bench_helper.py”, line 18, in main
click.Group(commands=commands)(prog_name=‘bench’)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 764, in call
return self.main(*args, **kwargs)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 717, in main
rv = self.invoke(ctx)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/core.py”, line 555, in invoke
return callback(*args, **kwargs)
File “/home/frappe/frappe-bench/env/lib/python3.6/site-packages/click/decorators.py”, line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/init.py”, line 25, in _func
ret = f(frappe._dict(ctx.obj), *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/commands/site.py”, line 233, in migrate
migrate(context.verbose, rebuild_website=rebuild_website, skip_failing=skip_failing)
File “/home/frappe/frappe-bench/apps/frappe/frappe/migrate.py”, line 48, in migrate
frappe.modules.patch_handler.run_all(skip_failing)
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 41, in run_all
run_patch(patch)
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 30, in run_patch
if not run_single(patchmodule = patch):
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 71, in run_single
return execute_patch(patchmodule, method, methodargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/modules/patch_handler.py”, line 91, in execute_patch
frappe.get_attr(patchmodule.split()[0] + “.execute”)()
File “/home/frappe/frappe-bench/apps/erpnext/erpnext/patches/v12_0/move_item_tax_to_item_tax_template.py”, line 44, in execute
item.save()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 271, in save
return self._save(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 324, in _save
self.run_post_save_methods()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 917, in run_post_save_methods
self.run_method(“on_update”)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 786, in run_method
out = Document.hook(fn)(self, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1056, in composer
return composed(self, method, *args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 1039, in runner
add_to_return_value(self, fn(self, *args, **kwargs))
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 780, in
fn = lambda self, *args, **kwargs: getattr(self, method)(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/erpnext/erpnext/stock/doctype/item/item.py”, line 139, in on_update
self.update_variants()
File “/home/frappe/frappe-bench/apps/erpnext/erpnext/stock/doctype/item/item.py”, line 764, in update_variants
update_variants(variants, self, publish_progress=False)
File “/home/frappe/frappe-bench/apps/erpnext/erpnext/stock/doctype/item/item.py”, line 1119, in update_variants
variant.save()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 271, in save
return self._save(*args, **kwargs)
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 310, in _save
self._validate()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 479, in _validate
self.validate_set_only_once()
File “/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py”, line 507, in validate_set_only_once
frappe.CannotChangeConstantError)
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 360, in throw
msgprint(msg, raise_exception=exc, title=title, indicator=‘red’)
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 346, in msgprint
_raise_exception()
File “/home/frappe/frappe-bench/apps/frappe/frappe/init.py”, line 315, in _raise_exception
raise raise_exception(msg)
frappe.exceptions.CannotChangeConstantError: Value cannot be changed for Valuation Method
frappe@VM4:~/frappe-bench$
Any help or ideas would be appreciated.