Opening Realm files of format version 5 is not supported by this version of Realm

[cristeap]

The Realm release notes said the problem was fixed but the problem persists. I've opened question on stack overflow that shows all my information:

https://stackoverflow.com/questions/66000503/opening-realm-files-of-format-version-5-is-not-supported-by-this-version-of-real

Goals

Open a older realm file. The realm file has the exact schema version. No classes, attributes or anything has changed in the schema. The code works perfect as long as a Realm file doesn't exist already.

Expected Results

Realm file to be read without crashing.

Actual Results

Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=io.realm Code=6 "Opening Realm files of format version 5 is not supported by this version of Realm" UserInfo={Error Code=6, NSFilePath=/var/mobile/Containers/Data/Application/04864A2A-4605-49B2-893F-15F76F60DD9B/Documents/default.realm, Underlying=Database has an unsupported version (5) and cannot be upgraded Exception backtrace:

0 Realm 0x000000010104e4ac _ZN5realm2DB7do_openERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEbbNS_9DBOptionsE + 5356 1 Realm 0x0000000101050694 _ZN5realm2DB4openERNS_11ReplicationENS_9DBOptionsE + 244

2 Realm 0x000000010105517c _ZN5realm2DB6createERNS_11ReplicationENS_9DBOptionsE + 392

3 Realm 0x0000000100b5cf40 _ZN5realm5_impl16RealmCoordinator7open_dbEv + 992

4 Realm 0x0000000100b5c148 _ZN5realm5_impl16RealmCoordinator12do_get_realmENS_5Realm6ConfigERNSt3__110shared_ptrIS2_EENS_4util8OptionalINS_9VersionIDEEERNS8_17CheckedUniqueLockE + 68

5 Realm 0x0000000100b5bf64 _ZN5realm5_impl16RealmCoordinator9get_realmENS_5Realm6ConfigENS_4util8OptionalINS_9VersionIDEEE + 668

6 Realm 0x0000000100e4f204 _ZN5realm5Realm16get_shared_realmENS0_6ConfigE + 176

7 Realm 0x0000000100db93d4 ﹍[RLMRealm realmWithConfiguration:queue:error:]﹍ 1796

8 RealmSwift 0x0000000102a6f478 $sSo8RLMRealmC13configuration5queueABSo0A13ConfigurationC_So012OS_dispatch_C0CSgtKcfCTO + 156

9 RealmSwift 0x0000000102ac8734 $s10RealmSwift0A0V13configuration5queueA2C13ConfigurationV_So012OS_dispatch_D0CSgtKcfC + 216

10 Vending Receipt 0x000000010050d0cc $s15Vending_Receipt0B7StorageC11getReceipts_5sort15sort29ascending10RealmSwift7ResultsVyAA0B0CGSS_S2SSbtF + 1572

11 Vending Receipt 0x00000001004e4868 $s15Vending_Receipt14SearchReceiptsC11UpdateTableyyF + 1980

12 Vending Receipt 0x00000001004e11d0 $s15Vending_Receipt14SearchReceiptsC11viewDidLoadyyF + 5768

13 Vending Receipt 0x00000001004e1250 $s15Vending_Receipt14SearchReceiptsC11viewDidLoadyyFTo + 32

14 UIKitCore 0x00000001a72f2e50 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 4623952

15 UIKitCore 0x00000001a72f7408 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 4641800

16 UIKitCore 0x00000001a72f77e8 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 4642792

17 UIKitCore 0x00000001a722b738 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 3807032

18 UIKitCore 0x00000001a723fbb0 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 3890096

19 UIKitCore 0x00000001a7240fe0 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 3895264

20 UIKitCore 0x00000001a7223e78 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 3776120

21 UIKitCore 0x00000001a7ec2398 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 17007512

22 QuartzCore 0x00000001a83c7df4 461501DD-204F-3516-9F5D-BDD0BA19FDA1 + 1400308

23 QuartzCore 0x00000001a83ce398 461501DD-204F-3516-9F5D-BDD0BA19FDA1 + 1426328

24 QuartzCore 0x00000001a83d96e8 461501DD-204F-3516-9F5D-BDD0BA19FDA1 + 1472232

25 QuartzCore 0x00000001a8324d7c 461501DD-204F-3516-9F5D-BDD0BA19FDA1 + 732540

26 QuartzCore 0x00000001a834ef40 461501DD-204F-3516-9F5D-BDD0BA19FDA1 + 905024

27 UIKitCore 0x00000001a79b6d8c CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 11718028

28 UIKitCore 0x00000001a7a5dac4 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 12401348

29 UIKitCore 0x00000001a7a54afc CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 12364540

30 CoreFoundation 0x00000001a50cdbf0 F3021642-E3C0-33F8-9911-DD303A6056D0 + 633840

31 CoreFoundation 0x00000001a50cdaf0 F3021642-E3C0-33F8-9911-DD303A6056D0 + 633584

32 CoreFoundation 0x00000001a50cce38 F3021642-E3C0-33F8-9911-DD303A6056D0 + 630328

33 CoreFoundation 0x00000001a50c73e0 F3021642-E3C0-33F8-9911-DD303A6056D0 + 607200

34 CoreFoundation 0x00000001a50c6ba0 CFRunLoopRunSpecific + 572

35 GraphicsServices 0x00000001bbe2f598 GSEventRunModal + 160

36 UIKitCore 0x00000001a79b82f4 CC6E5AC7-8248-35F6-8B42-2E25C93DCF0A + 11723508

37 UIKitCore 0x00000001a79bd874 UIApplicationMain + 164

38 Vending Receipt 0x00000001004d3444 main + 88

39 libdyld.dylib 0x00000001a4da5568 0B475C78-3C12-3121-B7F8-2B95B83DAF44 + 5480, NSLocalizedDescription=Opening Realm files of format version 5 is not supported by this version of Realm}: file Vending_Receipt/ReceiptModel.swift, line 52 2021-02-01 15:16:21.102889-0600 Vending Receipt[558:58472] Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=io.realm Code=6 "Opening Realm files of format version 5 is not supported by this version of Realm" UserInfo={Error Code=6, NSFilePath=/var/mobile/Containers/Data/Application/04864A2A-4605-49B2-893F-15F76F60DD9B/Documents/default.realm, Underlying=Database has an unsupported version (5) and cannot be upgraded

Steps for others to Reproduce

Code Sample

let realm = try! Realm()

Version of Realm and Tooling

tee /dev/tty | pbcopy
ProductName: macOS
ProductVersion: 11.1
BuildVersion: 20C69
/Applications/Xcode.app/Contents/Developer
Xcode 12.4
Build version 12D4e
/Users/Paul/.rvm/rubies/ruby-2.4.1/bin/pod
1.10.1
Realm (10.5.1)
RealmSwift (10.5.1)
/bin/bash
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin20)
/usr/bin/git
git version 2.24.3 (Apple Git-128)

[tgoyne]

v5.0.0 dropped support for opening Realm files written by versions before v3.0.0.

It's not obvious to me why we don't support opening file format version 5. We support migrating from 6+ and the 5->6 migration just consisted of recreating the string indexes.

[cristeap]

v5.0.0 dropped support for opening Realm files written by versions before v3.0.0.

It's not obvious to me why we don't support opening file format version 5. We support migrating from 6+ and the 5->6 migration just consisted of recreating the string indexes.

Thank You for the reply. I'm disappointed and have regrets now on using Realm. I'm not sure of a way to update the old Realm files for all the people that downloaded my app on the app store without deleting the old realm file and getting negative reviews. This is a real pickle.

Thank you anyways.

[tgoyne]

Based on some internal conversations it sounds like restoring support for opening file format version 5 won't be a problem.

[jedelbo]

I am kind of puzzled here. As far as I can tell file format version 6 goes back to version 2.0.0, which is from 2016. Are you upgrading from a file that old?