Hi,

When I want to install the helpdesk module, I receive this error :

RPC_ERROR
Odoo Server Error
Traceback (most recent call last):
File "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 698,\ in\ _tag_root
\ \ \ \ f\(rec\)
\ \ File\ "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 533,\ in\ _tag_record
\ \ \ \ raise\ Exception\("Cannot\ update\ missing\ record\ %r"\ %\ xid\)
Exception:\ Cannot\ update\ missing\ record\ 'base\.default_user'

The\ above\ exception\ was\ the\ direct\ cause\ of\ the\ following\ exception:

Traceback\ \(most\ recent\ call\ last\):
\ \ File\ "/home/odoo/src/odoo/odoo/http\.py",\ line\ 1583,\ in\ _serve_db
\ \ \ \ return\ service_model\.retrying\(self\._serve_ir_http,\ self\.env\)
\ \ File\ "/home/odoo/src/odoo/odoo/service/model\.py",\ line\ 134,\ in\ retrying
\ \ \ \ result\ =\ func\(\)
\ \ File\ "/home/odoo/src/odoo/odoo/http\.py",\ line\ 1610,\ in\ _serve_ir_http
\ \ \ \ response\ =\ self\.dispatcher\.dispatch\(rule\.endpoint,\ args\)
\ \ File\ "/home/odoo/src/odoo/odoo/http\.py",\ line\ 1807,\ in\ dispatch
\ \ \ \ result\ =\ self\.request\.registry\['ir\.http'\]\._dispatch\(endpoint\)
\ \ File\ "/home/odoo/src/odoo/odoo/addons/base/models/ir_http\.py",\ line\ 154,\ in\ _dispatch
\ \ \ \ result\ =\ endpoint\(\*\*request\.params\)
\ \ File\ "/home/odoo/src/odoo/odoo/http\.py",\ line\ 696,\ in\ route_wrapper
\ \ \ \ result\ =\ endpoint\(self,\ \*args,\ \*\*params_ok\)
\ \ File\ "/home/odoo/src/odoo/addons/web/controllers/dataset\.py",\ line\ 46,\ in\ call_button
\ \ \ \ action\ =\ self\._call_kw\(model,\ method,\ args,\ kwargs\)
\ \ File\ "/home/odoo/src/odoo/addons/web/controllers/dataset\.py",\ line\ 33,\ in\ _call_kw
\ \ \ \ return\ call_kw\(request\.env\[model\],\ method,\ args,\ kwargs\)
\ \ File\ "/home/odoo/src/odoo/odoo/api\.py",\ line\ 461,\ in\ call_kw
\ \ \ \ result\ =\ _call_kw_multi\(method,\ model,\ args,\ kwargs\)
\ \ File\ "/home/odoo/src/odoo/odoo/api\.py",\ line\ 448,\ in\ _call_kw_multi
\ \ \ \ result\ =\ method\(recs,\ \*args,\ \*\*kwargs\)
\ \ File\ "",\ line\ 2,\ in\ button_immediate_install
\ \ File\ "/home/odoo/src/odoo/odoo/addons/base/models/ir_module\.py",\ line\ 76,\ in\ check_and_log
\ \ \ \ return\ method\(self,\ \*args,\ \*\*kwargs\)
\ \ File\ "/home/odoo/src/odoo/odoo/addons/base/models/ir_module\.py",\ line\ 491,\ in\ button_immediate_install
\ \ \ \ return\ self\._button_immediate_function\(type\(self\)\.button_install\)
\ \ File\ "/home/odoo/src/odoo/odoo/addons/base/models/ir_module\.py",\ line\ 615,\ in\ _button_immediate_function
\ \ \ \ registry\ =\ modules\.registry\.Registry\.new\(self\._cr\.dbname,\ update_module=True\)
\ \ File\ "",\ line\ 2,\ in\ new
\ \ File\ "/home/odoo/src/odoo/odoo/tools/func\.py",\ line\ 87,\ in\ locked
\ \ \ \ return\ func\(inst,\ \*args,\ \*\*kwargs\)
\ \ File\ "/home/odoo/src/odoo/odoo/modules/registry\.py",\ line\ 90,\ in\ new
\ \ \ \ odoo\.modules\.load_modules\(registry,\ force_demo,\ status,\ update_module\)
\ \ File\ "/home/odoo/src/odoo/odoo/modules/loading\.py",\ line\ 487,\ in\ load_modules
\ \ \ \ processed_modules\ \+=\ load_marked_modules\(cr,\ graph,
\ \ File\ "/home/odoo/src/odoo/odoo/modules/loading\.py",\ line\ 371,\ in\ load_marked_modules
\ \ \ \ loaded,\ processed\ =\ load_module_graph\(
\ \ File\ "/home/odoo/src/odoo/odoo/modules/loading\.py",\ line\ 230,\ in\ load_module_graph
\ \ \ \ load_data\(cr,\ idref,\ mode,\ kind='data',\ package=package\)
\ \ File\ "/home/odoo/src/odoo/odoo/modules/loading\.py",\ line\ 71,\ in\ load_data
\ \ \ \ tools\.convert_file\(cr,\ package\.name,\ filename,\ idref,\ mode,\ noupdate,\ kind\)
\ \ File\ "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 763,\ in\ convert_file
\ \ \ \ convert_xml_import\(cr,\ module,\ fp,\ idref,\ mode,\ noupdate\)
\ \ File\ "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 829,\ in\ convert_xml_import
\ \ \ \ obj\.parse\(doc\.getroot\(\)\)
\ \ File\ "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 749,\ in\ parse
\ \ \ \ self\._tag_root\(de\)
\ \ File\ "/home/odoo/src/odoo/odoo/tools/convert\.py",\ line\ 711,\ in\ _tag_root
\ \ \ \ raise\ ParseError\('while\ parsing\ %s:%s,\ somewhere\ inside\n%s'\ %\ \(
odoo\.tools\.convert\.ParseError:\ while\ parsing\ /home/odoo/src/enterprise/helpdesk/security/helpdesk_security\.xml:26,\ somewhere\ inside

\ \ \ \ \ \ \ \
\ \ \ \

The\ above\ server\ error\ caused\ the\ following\ client\ error:
RPC_ERROR:\ Odoo\ Server\ Error
\ \ \ \ at\ makeErrorFromResponse\ \(https://ab\-corporation\.odoo\.com/web/assets/debug/web\.assets_backend\.js:10408:19\)\ \(/web/static/src/core/network/rpc_service\.js:34\)
\ \ \ \ at\ XMLHttpRequest\.\ \(https://ab-corporation.odoo.com/web/assets/debug/web.assets_backend.js:10461:27) (/web/static/src/core/network/rpc_service.js:87)

Someone can help me ?

Thanks