大佬教程收集整理的这篇文章主要介绍了Parse.com iOS SDK崩溃：PFSQLiteDatabase.m第178行 – [PFSQLiteDatabase _executeQueryAsync：withArgumentsInArray：cachingEnabled：]，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
我们的一些用户在生产中遇到了这种崩溃,正如我们在崩溃线程的Crashlytics报告中看到的那样：
Thread : Crashed: com.parse.sqlite.db.queue 0 libsqlite3.dylib 0x000000019b269f58 (null) + 9096 1 libsqlite3.dylib 0x000000019b25315c (null) + 85124 2 libsqlite3.dylib 0x000000019b25315c (null) + 85124 3 libsqlite3.dylib 0x000000019b21bd68 (null) + 3028 4 libsqlite3.dylib 0x000000019b2530c0 (null) + 84968 5 libsqlite3.dylib 0x000000019b245848 (null) + 29552 6 libsqlite3.dylib 0x000000019b225794 (null) + 13080 7 libsqlite3.dylib 0x000000019b224634 (null) + 8632 8 libsqlite3.dylib 0x000000019b223734 (null) + 4792 9 libsqlite3.dylib 0x000000019b222fa4 (null) + 2856 10 libsqlite3.dylib 0x000000019b222c5c (null) + 2016 11 Parse 0x00000001009a9c20 -[PFsqliteDatabase _executeQueryAsync:withArgumentsInArray:cachingEnabled:] (PFsqliteDatabase.m:178) 12 Bolts 0x000000010061d034 __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_2 (BFTask.m:334) 13 libdispatch.dylib 0x000000019b5457b0 _dispatch_call_block_and_release + 24 14 libdispatch.dylib 0x000000019b545770 _dispatch_client_callout + 16 15 libdispatch.dylib 0x000000019b55175c _dispatch_queue_drain + 864 16 libdispatch.dylib 0x000000019b549274 _dispatch_queue_invoke + 464 17 libdispatch.dylib 0x000000019b545770 _dispatch_client_callout + 16 18 libdispatch.dylib 0x000000019b553bb0 _dispatch_root_queue_drain + 2140 19 libdispatch.dylib 0x000000019b55334c _dispatch_worker_thread3 + 112 20 libsystem_pthread.dylib 0x000000019b759478 _pthread_wqthread + 1092
我的假设是,当数据库架构在应用程序升级之间发生变化时会发生这种情况,但这几乎是纯粹的猜测.
我正在寻找的是通过捕获异常或通过设置一些SDK配置属性来查看是否有人知道如何防止此崩溃发生.
我们的固定对象仅用于捕获数据和用户会话,如果需要可以安全删除.
更新：2015年11月23日
在应用程序启动时,我们一直在使用Parse SDK(1.9.1)遇到这个问题.看起来当Parse.com后端的数据模型发生变化并且与固定对象的数据模型不同时,应用程序总是崩溃一次.下次运行时,一切正常.
重现的可能步骤(不是100％肯定)：
>从Parse.com加载对象
>在本地固定对象
>完全关闭应用程序
>通过添加新列在Parse.com中更新模型
>启动应用程序
>重复步骤1和2
> CRASH
>再次启动应用程序
>重复步骤1和2
>一切正常
这是另一个可能有助于调试问题的崩溃报告：
Thread : Crashed: com.parse.sqlite.db.queue 0 libsqlite3.dylib 0x19ac05f58 (null) + 9096 1 libsqlite3.dylib 0x19abdc020 (null) + 6984 2 libsqlite3.dylib 0x19abdc020 (null) + 6984 3 libsqlite3.dylib 0x19abdbe2c (null) + 6484 4 libsqlite3.dylib 0x19abc1cc0 (null) + 14404 5 libsqlite3.dylib 0x19abc0634 (null) + 8632 6 libsqlite3.dylib 0x19abbf734 (null) + 4792 7 libsqlite3.dylib 0x19abbefa4 (null) + 2856 8 libsqlite3.dylib 0x19abbec5c (null) + 2016 9 Parse 0x100de8bc8 -[PFsqliteDatabase _executeQueryAsync:withArgumentsInArray:cachingEnabled:] (PFsqliteDatabase.m:176) 10 Bolts 0x1006c6fec __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_2 (BFTask.m:336) 11 libdispatch.dylib 0x19aee17b0 _dispatch_call_block_and_release + 24 12 libdispatch.dylib 0x19aee1770 _dispatch_client_callout + 16 13 libdispatch.dylib 0x19aeed75c _dispatch_queue_drain + 864 14 libdispatch.dylib 0x19aee5274 _dispatch_queue_invoke + 464 15 libdispatch.dylib 0x19aee1770 _dispatch_client_callout + 16 16 libdispatch.dylib 0x19aeefbb0 _dispatch_root_queue_drain + 2140 17 libdispatch.dylib 0x19aeef34c _dispatch_worker_thread3 + 112 18 libsystem_pthread.dylib 0x19b0f5478 _pthread_wqthread + 1092 19 libsystem_pthread.dylib 0x19b0f5028 start_wqthread + 4
另一个：
Thread : Crashed: com.parse.sqlite.db.queue 0 libsqlite3.dylib 0x195959bb8 (null) + 31936 1 libsqlite3.dylib 0x195959bb4 (null) + 31932 2 libsqlite3.dylib 0x195952108 sqlite3_step + 528 3 Parse 0x100e7e330 -[PFsqliteDatabaseResult step] (PFsqliteDatabaseResult.m:39) 4 Parse 0x100e7e2ec -[PFsqliteDatabaseResult next] (PFsqliteDatabaseResult.m:35) 5 Parse 0x100e59ce4 __52-[PFOfflinestore _getPointerAsyncWithUUID:database:]_block_invoke (PFOfflinestore.m:897) 6 Bolts 0x100727748 __62-[BFTask conTinueWithExecutor:successBlock:cancellationToken:]_block_invoke (BFTask.m:410) 7 Bolts 0x100726fec __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_2 (BFTask.m:336) 8 Bolts 0x100724d5c __29+[BFExecutor defaultExecutor]_block_invoke_2 (BFExecutor.m:45) 9 Bolts 0x100725270 -[BFExecutor execute:] (BFExecutor.m:109) 10 Bolts 0x100726f64 __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke (BFTask.m:328) 11 Bolts 0x100726b70 -[BFTask runConTinuations] (BFTask.m:308) 12 Bolts 0x1007263e0 -[BFTask trySetResult:] (BFTask.m:200) 13 Bolts 0x100726314 -[BFTask setResult:] (BFTask.m:187) 14 Bolts 0x100727e4c -[BFTaskCompletionsource setResult:] (BFTaskCompletionsource.m:52) 15 Bolts 0x1007272ac __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_3 (BFTask.m:352) 16 Bolts 0x1007270a0 __55-[BFTask conTinueWithExecutor:block:cancellationToken:]_block_invoke_2 (BFTask.m:360) 17 libdispatch.dylib 0x195c313ac _dispatch_call_block_and_release + 24 18 libdispatch.dylib 0x195c3136c _dispatch_client_callout + 16 19 libdispatch.dylib 0x195c3b4c0 _dispatch_queue_drain + 1216 20 libdispatch.dylib 0x195c34474 _dispatch_queue_invoke + 132 21 libdispatch.dylib 0x195c3d224 _dispatch_root_queue_drain + 664 22 libdispatch.dylib 0x195c3e75c _dispatch_worker_thread3 + 108 23 libsystem_pthread.dylib 0x195e0d2e4 _pthread_wqthread + 816 24 libsystem_pthread.dylib 0x195e0cfa8 start_wqthread + 4
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