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  1. Realm Cocoa SDK
  2. RCOCOA-1886

Assertion failed: m_flx_latest_version <= version

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      How frequently does the bug occur?

      Sometimes

      Description

      The crash occurs from time to time and triggers at :

      `Realm.asyncOpen(configuration: getFlexibleConfig()) { (result) in
      }`

      configuration : 

        func getFlexibleConfig() -> Realm.Configuration{
        let user = app!.currentUser
        var config = user!.flexibleSyncConfiguration(initialSubscriptions: { subs in
            subs.append(
                QuerySubscription<uploads> {
                    $0.deviceId == self.RLM_DEVICE_ID && $0.realmUserId == user!.id
                })
        },rerunOnOpen: true)
        
        config.objectTypes = [uploads.self,place.self,details.self]
        return config
  }

      Right after the auth using
      login(credentials: Credentials.emailPassword(email: username, password: password))

      Stacktrace & log output

      Unable to find source-code formatter for language: shell. Available languages are: actionscript, ada, applescript, bash, c, c#, c++, cpp, css, erlang, go, groovy, haskell, html, java, javascript, js, json, lua, none, nyan, objc, perl, php, python, r, rainbow, ruby, scala, sh, sql, swift, visualbasic, xml, yaml
      /Users/realm/workspace/realm_realm-core_release_12.11.0/src/realm/sync/client.cpp:1002: [realm-core-12.11.0] Assertion failed: m_flx_latest_version <= version
0   Realm                               0x00000001040de154 _ZN5realm4utilL18terminate_internalERNSt3__118basic_stringstreamIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE + 28
1   Realm                               0x00000001040de09c _ZN5realm4util9terminateEPKcS2_lOSt16initializer_listINS0_9PrintableEE + 328
2   Realm                               0x0000000104109434 _ZN5realm4sync14SessionWrapper17on_flx_sync_errorExNSt3__117basic_string_viewIcNS2_11char_traitsIcEEEE + 412
3   Realm                               0x0000000104138898 _ZN5realm4sync10ClientImpl10Connection27receive_query_error_messageEiNSt3__117basic_string_viewIcNS3_11char_traitsIcEEEExy + 236
4   Realm                               0x0000000104134ee4 _ZN5realm5_impl14ClientProtocol22parse_message_receivedINS_4sync10ClientImpl10ConnectionEEEvRT_NSt3__117basic_string_viewIcNS8_11char_traitsIcEEEE + 360
5   Realm                               0x0000000104132ab4 _ZN5realm4sync10ClientImpl10Connection33websocket_binary_message_receivedEPKcm + 60
6   Realm                               0x0000000104191ea8 _ZN12_GLOBAL__N_19WebSocket17frame_reader_loopEv + 1188
7   Realm                               0x0000000104184e04 _ZN5realm4util7network7Service9AsyncOper22do_recycle_and_executeINS0_14UniqueFunctionIFvNSt3__110error_codeEmEEEJRS7_RmEEEvbRT_DpOT0_ + 152
8   Realm                               0x000000010418498c _ZN5realm4util7network7Service14BasicStreamOpsINS1_3ssl6StreamEE16BufferedReadOperINS0_14UniqueFunctionIFvNSt3__110error_codeEmEEEE19recycle_and_executeEv + 240
9   Realm                               0x00000001041878f0 _ZN5realm4util7network7Service4Impl3runEv + 408
10  Realm                               0x000000010410d1b0 _ZN5realm4sync6Client3runEv + 36
11  Realm                               0x0000000104291824 _ZNSt3__1L14__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEZN5realm5_impl10SyncClientC1ENS2_INS7_4util6LoggerENS4_ISB_EEEERKNS7_16SyncClientConfigENS_8weak_ptrIKNS7_11SyncManagerEEEEUlvE0_EEEEEPvSN_ + 44
12  libsystem_pthread.dylib             0x000000022d5e19ac _pthread_start + 148
13  libsystem_pthread.dylib             0x000000022d5e0e68 thread_start + 8!!! IMPORTANT: Please report this at https://github.com/realm/realm-core/issues/new/choosedyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/usr/lib/libMainThreadChecker.dylib:/usr/lib/libMTLCapture.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib

      Can you reproduce the bug?

      Yes, sometimes

      Reproduction Steps

      Try Realm.asyncOpen with a flexibleSync configuration that has queries. I did however tested to query with an optional field and saw the crash immediately, it was resolved when I removed that and rebuilt. Then it started to reproduce again without the optional field and any other changes.

      Version

      10.32.2

      What SDK flavour are you using?

      MongoDB Realm (i.e. Sync, auth, functions)

      Are you using encryption?

      No, not using encryption

      Platform OS and version(s)

      IOS 15.6

      Build environment

      Xcode version: 14.0
      Dependency manager and version: Cocoapods 1.11.3

      Note: We downgraded the xCode from 14.1 inorder to be able to build Realm 10.32.2. Related Issue

            Assignee:
            jonathan.reams@mongodb.com Jonathan Reams
            Reporter:
            unitosyncbot Unito Sync Bot
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Created:
              Updated:
              Resolved: