能否请您看一下这段代码，并帮助我确定错误。我仍在学习中，尽管它可能会突然出现，但是您的专业知识和理解会得到极大的帮助。 系统Odoo11 问题主要发生在进入开发人员模式时。
https://example.com/web/content/2787-29a67eb/web.assets_backend.js:144
**Traceback:**
PY_ensurepy@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:144:65
py.evaluate@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:259:8
py.evaluate@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:267:96
py.evaluate@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:268:191
py.eval@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:272:281
eval_contexts/<@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:377:107
iterator@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:14:183
createReduce/<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:17:8
_.mixin/</_.prototype[name]@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:69:521
eval_contexts@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:375:136
eval_contexts/<@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:377:253
iterator@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:14:183
createReduce/<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:17:8
_.mixin/</_.prototype[name]@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:69:521
eval_contexts@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:375:136
pyeval@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:392:8
do_action@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:437:261
do_action@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:501:5629
do_menu_action/</<@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:518:246
exec/<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:4010:295
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:678
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
add@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:797:467
then/</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:649
each@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:625:758
then/<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:553
Deferred@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:803:189
then@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:518
exec@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:4010:257
do_menu_action/<@https://example.com/web/content/2787-29a67eb/web.assets_backend.js:518:184
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:678
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
Deferred/</deferred[tuple[0]]@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:803:56
add/<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:4009:819
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:874
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:874
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:874
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
then/</</<@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:802:874
fire@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:796:281
fireWith@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:801:198
done@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:1192:86
callback@https://example.com/web/content/1045-f5c1ff8/web.assets_common.js:1212:15