How can I solve Odoo Server Error while Importing .zip Studio File - import

Question

I am trying to import .zip Studio Customization file to Odoo Version 15. As we are migrating our Odoo System we want transfer our Studio Customizations from the development Database to the Production Database.I am getting the following Error:
1.
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 85, in lookup
r = d[key]
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/func.py", line 71, in wrapper
return func(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/lru.py", line 34, in __getitem__
a = self.d[obj]
KeyError: ('ir.model.access', <function IrModelAccess.check at 0x7f330bb4f4c0>, 2, False, 'base.import.module', 'write', True, ('en_US',))
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/addons/base/models/ir_http.py", line 237, in _dispatch
result = request.dispatch()
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 688, in dispatch
result = self._call_function(**self.params)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 360, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/service/model.py", line 94, in wrapper
return f(dbname, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 349, in checked_call
result = self.endpoint(*a, **kw)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 917, in __call__
return self.method(*args, **kw)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 536, in response_wrap
response = f(*args, **kw)
File "/home/secusmart/odoo15-prod/odoo/addons/web/controllers/main.py", line 1352, in call_button
action = self._call_kw(model, method, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/addons/web/controllers/main.py", line 1340, in _call_kw
return call_kw(request.env[model], method, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/api.py", line 464, in call_kw
result = _call_kw_multi(method, model, args, kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/api.py", line 451, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/addons/base_import_module/models/base_import_module.py", line 24, in import_module
self.write({'state': 'done', 'import_message': res[0]})
File "/home/secusmart/odoo15-prod/odoo/odoo/models.py", line 3763, in write
self.check_access_rights('write')
File "/home/secusmart/odoo15-prod/odoo/odoo/models.py", line 3538, in check_access_rights
return self.env['ir.model.access'].check(self._name, operation, raise_exception)
File "<decorator-gen-33>", line 2, in check
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 90, in lookup
value = d[key] = self.method(*args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/addons/base/models/ir_model.py", line 1762, in check
self._cr.execute("""SELECT MAX(CASE WHEN perm_{mode} THEN 1 ELSE 0 END)
File "<decorator-gen-3>", line 2, in execute
File "/home/secusmart/odoo15-prod/odoo/odoo/sql_db.py", line 89, in check
return f(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/sql_db.py", line 310, in execute
res = self._obj.execute(query, params)
Exception
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 644, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/home/secusmart/odoo15-prod/odoo/odoo/http.py", line 302, in _handle_exception
raise exception.with_traceback(None) from new_cause
psycopg2.errors.InFailedSqlTransaction: current transaction is aborted, commands ignored until end of transaction block
I fixed the first error by performing the import as superuser
Now I got the following Error:
2.
Traceback (most recent call last):
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/cache.py", line 85, in lookup
r = d[key]
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/func.py", line 71, in wrapper
return func(self, *args, **kwargs)
File "/home/secusmart/odoo15-prod/odoo/odoo/tools/lru.py", line 34, in __getitem__
a = self.d[obj]
KeyError: ('res.lang', <function Lang.get_installed at 0x7f330ab8b4c0>)

Answer 1

You can refer to this answer: Is it possible to import Odoo15 Studio .zip file to Odoo16?
As a small recap, basically you should use the migration tools offered by odoo. You have an enterprise subscription and are using a version of Odoo that is still supported. So migrating your database by Odoo employees should already be possible - and free.