自从升级到El Capitan后，我的Mac应用程序（包括In-App购买）无法处理In-App购买。这是我在控制台中看到的错误：
storeaccountd(453) deny file-write-create /Users/kenny/Library/Caches/com.inadaydevelopment.mac10biiFinancialCalculator
用户点击购买后，弹出App Store登录窗口，然后弹出应用内购买确认窗口并显示“购买”按钮。点击“购买”后会再次弹出购买确认窗口。此后，控制台会输出上述错误信息大约15次。最后，会弹出一个包含“未知错误发生”的提示框，其中包括“重试”和“取消”按钮。
该应用程序之前一直可以使用，但用户升级到El Capitan后便无法使用了。这是怎么回事？
以下是从控制台中完整的错误报告：
storeaccountd(453) deny file-write-create /Users/kenny/Library/Caches/com.inadaydevelopment.mac10biiFinancialCalculator
Process: storeaccountd [453]
Path: /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/Resources/storeaccountd
Load Address: 0x108432000
Identifier: storeaccountd
Version: ??? (???)
Code Type: x86_64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-11-17 17:44:11.750 -0800
OS Version: Mac OS X 10.11.1 (15B42)
Report Version: 8
Thread 0:
0 libsystem_kernel.dylib 0x00007fff87e57c96 mach_msg_trap + 10
1 CoreFoundation 0x00007fff8dd5f2b4 __CFRunLoopServiceMachPort + 212
2 CoreFoundation 0x00007fff8dd5e77c __CFRunLoopRun + 1356
3 CoreFoundation 0x00007fff8dd5dfc8 CFRunLoopRunSpecific + 296
4 CoreFoundation 0x00007fff8dd9f961 CFRunLoopRun + 97
5 storeaccountd 0x0000000108439a99
6 libdyld.dylib 0x00007fff8f8215ad start + 1
Thread 1:
0 libsystem_kernel.dylib 0x00007fff87e5e0a2 kevent_qos + 10
1 libdispatch.dylib 0x00007fff99400d85 _dispatch_autorelease_pool_pop + 0
Thread 2:
0 libsystem_kernel.dylib 0x00007fff87e57c96 mach_msg_trap + 10
1 CoreFoundation 0x00007fff8dd5f2b4 __CFRunLoopServiceMachPort + 212
2 CoreFoundation 0x00007fff8dd5e77c __CFRunLoopRun + 1356
3 CoreFoundation 0x00007fff8dd5dfc8 CFRunLoopRunSpecific + 296
4 CFNetwork 0x00007fff91efbd6d +[NSURLConnection(Loader) _resourceLoadLoop:] + 412
5 Foundation 0x00007fff92f42ee4 __NSThread__start__ + 1351
6 libsystem_pthread.dylib 0x00007fff951ce9b1 _pthread_body + 131
7 libsystem_pthread.dylib 0x00007fff951ce92e _pthread_body + 0
8 libsystem_pthread.dylib 0x00007fff951cc385 thread_start + 13
Thread 3:
0 libsystem_kernel.dylib 0x00007fff87e5d78a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Thread 4:
0 libsystem_kernel.dylib 0x00007fff87e5d222 __select + 10
1 libsystem_pthread.dylib 0x00007fff951ce9b1 _pthread_body + 131
2 libsystem_pthread.dylib 0x00007fff951ce92e _pthread_body + 0
3 libsystem_pthread.dylib 0x00007fff951cc385 thread_start + 13
Thread 5:
0 libsystem_kernel.dylib 0x00007fff87e57cd2 semaphore_wait_trap + 10
1 libdispatch.dylib 0x00007fff99409a19 _dispatch_barrier_sync_f_slow + 594
2 storeaccountd 0x0000000108436d1a
3 storeaccountd 0x000000010843c77b
4 libdispatch.dylib 0x00007fff994068f5 _dispatch_call_block_and_release + 12
5 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
6 libdispatch.dylib 0x00007fff9940dbd6 _dispatch_async_redirect_invoke + 1733
7 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
8 libdispatch.dylib 0x00007fff993ff253 _dispatch_root_queue_drain + 1890
9 libdispatch.dylib 0x00007fff993feab8 _dispatch_worker_thread3 + 91
10 libsystem_pthread.dylib 0x00007fff951ce4f2 _pthread_wqthread + 1129
11 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Thread 6:
0 libsystem_kernel.dylib 0x00007fff87e5e1f2 mkdir + 10
1 Foundation 0x00007fff92f38212 -[NSFileManager createDirectoryAtPath:withIntermediateDirectories:attributes:error:] + 286
2 StoreFoundation 0x00007fff928c90e9 +[NSFileManager(ISAdditions) ensureDirectoryExists:] + 292
3 storeaccountd 0x0000000108437d8e
4 storeaccountd 0x0000000108437ff2
5 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
6 libdispatch.dylib 0x00007fff993fc9aa _dispatch_barrier_sync_f_invoke + 74
7 storeaccountd 0x0000000108437677
8 storeaccountd 0x0000000108437074
9 storeaccountd 0x0000000108439510
10 StoreFoundation 0x00007fff928d4bde -[ISURLOperation _sendOutputToDelegate:] + 101
11 StoreFoundation 0x00007fff928d1b5d -[ISURLOperation _handleFinishedLoading] + 937
12 CFNetwork 0x00007fff91f21851 __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 69
13 CFNetwork 0x00007fff91f21766 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 233
14 CFNetwork 0x00007fff91f2166b -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 48
15 CFNetwork 0x00007fff91f26492 ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 104
16 CFNetwork 0x00007fff920ba977 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 100
17 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
18 libdispatch.dylib 0x00007fff994090be _dispatch_block_invoke + 474
19 CFNetwork 0x00007fff91f21528 RunloopBlockContext::_invoke_block(void const*, void*) + 24
20 CoreFoundation 0x00007fff8dd21e64 CFArrayApplyFunction + 68
21 CFNetwork 0x00007fff91f21421 RunloopBlockContext::perform() + 137
22 CFNetwork 0x00007fff91f212c2 MultiplexerSource::perform() + 282
23 CFNetwork 0x00007fff91f210e4 MultiplexerSource::_perform(void*) + 72
24 CoreFoundation 0x00007fff8dd7f8b1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
25 CoreFoundation 0x00007fff8dd5f0ac __CFRunLoopDoSources0 + 556
26 CoreFoundation 0x00007fff8dd5e5cf __CFRunLoopRun + 927
27 CoreFoundation 0x00007fff8dd5dfc8 CFRunLoopRunSpecific + 296
28 StoreFoundation 0x00007fff928cb771 -[ISOperation runRunLoopUntilStopped] + 46
29 StoreFoundation 0x00007fff928d463d -[ISURLOperation _runWithURL:] + 436
30 StoreFoundation 0x00007fff928d4410 -[ISURLOperation _run] + 234
31 StoreFoundation 0x00007fff928d092e -[ISURLOperation run] + 238
32 StoreFoundation 0x00007fff928b73b1 -[ISStoreURLOperation _runURLOperation] + 2707
33 StoreFoundation 0x00007fff928b5e37 -[ISStoreURLOperation run] + 354
34 StoreFoundation 0x00007fff928cc0d5 -[ISOperation _main:] + 426
35 StoreFoundation 0x00007fff928cbc03 -[ISOperation main] + 547
36 StoreFoundation 0x00007fff928cb861 -[ISOperation runSubOperation:returningError:] + 209
37 storeaccountd 0x0000000108438e56
38 StoreFoundation 0x00007fff928cc0d5 -[ISOperation _main:] + 426
39 StoreFoundation 0x00007fff928cbc03 -[ISOperation main] + 547
40 StoreFoundation 0x00007fff928cb861 -[ISOperation runSubOperation:returningError:] + 209
41 StoreFoundation 0x00007fff928cb729 -[ISOperation runSyncReturningError:] + 124
42 storeaccountd 0x0000000108436e96
43 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
44 libdispatch.dylib 0x00007fff993fc9aa _dispatch_barrier_sync_f_invoke + 74
45 storeaccountd 0x0000000108436d1a
46 storeaccountd 0x000000010843c77b
47 libdispatch.dylib 0x00007fff994068f5 _dispatch_call_block_and_release + 12
48 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
49 libdispatch.dylib 0x00007fff9940dbd6 _dispatch_async_redirect_invoke + 1733
50 libdispatch.dylib 0x00007fff993fb3c3 _dispatch_client_callout + 8
51 libdispatch.dylib 0x00007fff993ff253 _dispatch_root_queue_drain + 1890
52 libdispatch.dylib 0x00007fff993feab8 _dispatch_worker_thread3 + 91
53 libsystem_pthread.dylib 0x00007fff951ce4f2 _pthread_wqthread + 1129
54 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Thread 7:
0 libsystem_kernel.dylib 0x00007fff87e5d78a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Thread 8:
0 libsystem_kernel.dylib 0x00007fff87e5d78a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Thread 9:
0 libsystem_kernel.dylib 0x00007fff87e5d78a __workq_kernreturn + 10
1 libsystem_pthread.dylib 0x00007fff951cc375 start_wqthread + 13
Binary Images:
0x108432000 - 0x1084b3ff7 storeaccountd (453.1) <44e44bb6-89e6-3c27-ab8f-c4270e9eb93a> /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/Resources/storeaccountd
0x7fff87e46000 - 0x7fff87e64fff libsystem_kernel.dylib (3247.10.11) <fa4dcf42-27b0-3878-9158-e148d208b21e> /usr/lib/system/libsystem_kernel.dylib
0x7fff8dcd5000 - 0x7fff8e14aff7 com.apple.CoreFoundation (6.9 - 1255.1) <86b26482-c917-34f2-80d8-02911b6001e0> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x7fff8f81e000 - 0x7fff8f821ffb libdyld.dylib (360.17) <99396189-e53a-3a78-bc49-449236da7cff> /usr/lib/system/libdyld.dylib
0x7fff91ef3000 - 0x7fff9217aff3 com.apple.CFNetwork (760.1.2 - 760.1.2) <d4fd8df6-8481-3be6-9e93-a3268b16774e> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x7fff928ab000 - 0x7fff92911ff7 com.apple.StoreFoundation (1.0 - 453.1) <f92b8382-6ef1-3948-aec5-b7d2ef1e4f39> /System/Library/PrivateFrameworks/StoreFoundation.framework/Versions/A/StoreFoundation
0x7fff92f0d000 - 0x7fff93261fff com.apple.Foundation (6.9 - 1255.1) <3ad7b198-3943-3919-b6f2-b0c28dc817b1> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x7fff951cb000 - 0x7fff951d4ff7 libsystem_pthread.dylib (137.1.1) <1373d0f1-c6ca-364e-a6ba-8bdbd0d34670> /usr/lib/system/libsystem_pthread.dylib
0x7fff993f9000 - 0x7fff99426fff libdispatch.dylib (500.10.1) <438f4595-0731-34a2-acad-60121a76d1ff> /usr/lib/system/libdispatch.dylib