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DatabaseException - "unable to open database file" on iOS

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#494 3 comments 5 reactions 0 assignees View on GitHub

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
dart, flutter
Domain
database, mobile

Research direction

The report names no repository file or test; start by reproducing the failure on iOS or a TestFlight build and trace the cache manager's database update and insert paths. Compare the custom and default database configurations, then document the cause and verify that the affected cache operations complete without the database-open error.

Written by the indexing model from the issue text.

Description

Package: [flutter_cache_manager]
Platform: iOS
Error: DatabaseException(Error Domain=SqfliteDarwinDatabase Code=14 "unable to open database file")


🔍 Description

While using the package, I occasionally encounter the following error on iOS:

#0      wrapDatabaseException (package:sqflite_platform_interface/src/platform_exception.dart:12)
<asynchronous suspension>
#1      SqfliteDatabaseMixinExt._txnRawUpdateOrDelete.<anonymous closure> (package:sqflite_common/src/database_mixin.dart:318)
<asynchronous suspension>
#2      BasicLock.synchronized (package:synchronized/src/basic_lock.dart:36)
<asynchronous suspension>
#3      SqfliteDatabaseMixin.txnSynchronized (package:sqflite_common/src/database_mixin.dart:517)
<asynchronous suspension>

This seems to happen when the cache manager tries to update or insert entries in the database. It appears that the database file is either not found or not accessible at runtime.


✅ What I’ve Tried
  • Verified that I'm not deleting or moving the database file manually.
  • Tried using CacheManager with a custom config and custom database name.
  • Happens mostly in production or TestFlight builds — not consistently reproducible in debug mode.

Dominant language
Dart
Stars
810
Forks
510
Avg merge
2d 2h
Merged PRs (30d)
11

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