Crash on iPhone 4S: FormatException: Invalid radix-16 number

[ryanhz]

FormatException: Invalid radix-16 number
ffffffff82d6375e
Image provider: CachedNetworkImageProvider("https://appdemo.gymmasteronline.com/static/m-img/bda2c80000feeb515a22821b1c4364f4.jpg", scale: 1.0)
Image key: CachedNetworkImageProvider("https://appdemo.gymmasteronline.com/static/m-img/bda2c80000feeb515a22821b1c4364f4.jpg", scale: 1.0)#0      int._throwFormatException (dart:core/runtime/libintegers_patch.dart:130:5)
#1      int._parse (dart:core/runtime/libintegers_patch.dart:104:14)
#2      int.parse (dart:core/runtime/libintegers_patch.dart:61:12)
#3      StandardMessageCodec.readValueOfType (package:flutter/src/services/message_codecs.dart:396:22)
#4      StandardMessageCodec.readValue (package:flutter/src/services/message_codecs.dart:365:12)
#5      StandardMessageCodec.readValueOfType (package:flutter/src/services/message_codecs.dart:432:39)
#6      StandardMessageCodec.readValue (package:flutter/src/services/message_codecs.dart:365:12)
#7      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:546:27)
#8      MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:279:18)
<asynchronous suspension>
#9      SharedPreferences.getInstance (package:shared_preferences/shared_preferences.dart:25:27)
<asynchronous suspension>
#10     CacheManager._init (package:flutter_cache_manager/flutter_cache_manager.dart:51:38)
<asynchronous suspension>
#11     CacheManager.getInstance.<anonymous closure> (package:flutter_cache_manager/flutter_cache_manager.dart:33:29)
<asynchronous suspension>
#12     Lock._runTask (package:synchronized/src/synchronized_impl.dart:149:27)
#13     LockBase._createAndRunTask.run (package:synchronized/src/synchronized_impl.dart:64:14)
#14     LockBase._createAndRunTask (package:synchronized/src/synchronized_impl.dart:74:17)
#15     Lock.synchronized (package:synchronized/src/synchronized_impl.dart:142:12)
#16     CacheManager.getInstance (package:flutter_cache_manager/flutter_cache_manager.dart:29:19)
<asynchronous suspension>
#17     CachedNetworkImageProvider._loadAsync (package:cached_network_image/cached_network_image.dart:471:43)
<asynchronous suspension>
#18     CachedNetworkImageProvider.load (package:cached_network_image/cached_network_image.dart:462:16)
#19     ImageProvider.resolve.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:266:86)
#20     ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:143:20)

[renefloor]

I guess this is related to this flutter issue: flutter/flutter#21313
Not sure if I can do anything about it, but it is a good reason to move away from using shared_preferences for the storage of cache data.

[ryanhz]

Yes, it only happens on 32-bit machines and when you are using integers or booleans. It is actually a bug for SharedPreferences.

[hariprasadiit]

I've modified the code to use ISO string dates to work around this issue.

[romatroskin]

I guess this is related to this flutter issue: flutter/flutter#21313
Not sure if I can do anything about it, but it is a good reason to move away from using shared_preferences for the storage of cache data.

you can try to migrate to https://pub.dartlang.org/packages/flutter_mmkv