报错信息 "MiniProgramError\nundefined is not an object (evaluating 'e.substr')\nTypeError: undefined is not an object (evaluating 'e.substr')\nat getTerm (app-service.js:6296:10510)\nat solar2lunar (app-service.js:6296:12267)\nat getDayInfo (app-service.js:6308:1612)\nat getMonthData (app-service.js:6308:1392)\nat initDateTime (app-service.js:6308:686)\nat attached (app-service.js:6308:5893)\nat  (WASubContext.js:1:474892)\nat  (WASubContext.js:1:474673)\nat t (WASubContext.js:1:492309)\nat t (WASubContext.js:1:492621)\nat t (WASubContext.js:1:492563)\nat f (WASubContext.js:1:492631)\nat  (WASubContext.js:1:504658)\nat Pa (WASubContext.js:1:674985)\nat  (WASubContext.js:1:721870)\nat  (WASubContext.js:1:690345)\nat  (WASubContext.js:1:724155)\nat  (WASubContext.js:1:690345)\nat  (WASubContext.js:1:728126)\nat  (WASubContext.js:1:690345)\nat vr (WASubContext.js:1:734559)\nat  (WASubContext.js:1:689483)\nat  (WAServiceMainContext.js:1:751648)\nat emit (WAServiceMainContext.js:1:748399)\nat emit (native code)\nat  (WAServiceMainContext.js:1:2319816)\nat  (WAServiceMainContext.js:1:758478)\nat  (WAServiceMainContext.js:1:751747)\nat emit (WAServiceMainContext.js:1:748399)\nat  (WAServiceMainContext.js:1:803801)\nat  (WAServiceMainContext.js:1:781469)\nat  (WAServiceMainContext.js:1:144911)\nat emit (WAServiceMainContext.js:1:81766)\nat  (WAServiceMainContext.js:1:84248)\nat emit (WAServiceMainContext.js:1:81389)\nat subscribeHandler (WAServiceMainContext.js:1:83949)\nglobal code@" 实在排查不出来了，各位大佬帮忙看看！ 基础库：2.25.2 苹果机版本：15 &定位到时substr的问题 难道苹果手机.substr 这个方法不管用么？

友盟分享SDK6.9.7 加入微信最新SDK1.8.6.1会崩溃 错误信息如下： 2020-02-12 10:16:21 UMengAnalytics<6.0.5>(Debug):[UMANError:62]UMAnalytics error:session_id=2228E236EA253C639C0010DD3B79D4C8, context=+[WXApi registerApp:]: unrecognized selector sent to class 0x102f2fec0 (null) ((     0   CoreFoundation                      0x000000019a25ea5c 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 1227356     1   libobjc.A.dylib                     0x0000000199f85fa4 objc_exception_throw + 56     2   CoreFoundation                      0x000000019a166e34 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 212532     3   IAUGold                             0x00000001025b7488 +[NSObject(Singleton) sw_doesNotRecognizeSelector:] + 184     4   CoreFoundation                      0x000000019a262af4 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 1243892     5   CoreFoundation                      0x000000019a264a7c _CF_forwarding_prep_0 + 92     6   IAUGold                             0x0000000102b4ecbc -[UMSocialOfficialWechatHandler umSocial_setAppKey:withAppSecret:withRedirectURL:] + 132     7   IAUGold                             0x0000000102ac9680 -[UMSocialManager doSetPlaform:appKey:appSecret:redirectURL:] + 524     8   IAUGold                             0x0000000102ac0a1c -[UMSocialManager doSetPlaformTypeArray:appKey:appSecret:redirectURL:] + 296     9   IAUGold                             0x0000000102ac0dcc -[UMSocialManager setPlaform:appKey:appSecret:redirectURL:] + 832     10  IAUGold                             0x00000001026afffc -[AppDelegate configUSharePlatforms] + 120     11  IAUGold                             0x00000001026ad758 __57-[AppDelegate application:didFinishLaunchingWithOptions:]_block_invoke + 76     12  libdispatch.dylib                   0x00000001038517fc _dispatch_call_block_and_release + 24     13  libdispatch.dylib                   0x0000000103852bd8 _dispatch_client_callout + 16     14  libdispatch.dylib                   0x0000000103860c34 _dispatch_main_queue_callback_4CF + 1316     15  CoreFoundation                      0x000000019a1dc5e4 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 693732     16  CoreFoundation                      0x000000019a1d75d8 7519E999-1053-3367-B9D5-8844F6D3BDC6 + 673240     17  CoreFoundation                      0x000000019a1d6adc CFRunLoopRunSpecific + 464     18  GraphicsServices                    0x00000001a4177328 GSEventRunModal + 104     19  UIKitCore                           0x000000019e2e463c UIApplicationMain + 1936     20  IAUGold                             0x00000001026ad134 main + 124     21  libdyld.dylib                       0x000000019a060360 7B531A15-3E73-3185-90E2-B88D9476DA5E + 4960 ) dSYM UUID: AC15CF98-D168-3245-B7BF-501EC5BA7104 CPU Type: arm64 Slide Address: 0x0000000100000000 Binary Image: IAUGold Base Address: 0x0000000102118000 2020-02-12 10:16:21 UMengAnalytics<6.0.5>(Debug):[UMANTerminate:126]UMAnalytics session:session_id=2228E236EA253C639C0010DD3B79D4C8, duration=1654.000000 libc++abi.dylib: terminate_handler unexpectedly threw an exception 但是我如果使用以前版本的微信SDK就没事 请问这是为什么？