Exception when clicking the gen address button (NPE when calling TWHDWalletCreate)

[svdo7]

Hello,

when clicking the generate address button on the example app (using Google Pixel 4 Simulator), I receive the following SIGSEGV (NPE), which happens to occur random_buffer.

F/libc    ( 5853): Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 5884 (1.ui), pid 5853 (allet_core_demo)
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
Build fingerprint: 'google/sdk_gphone_x86/generic_x86_arm:11/RSR1.201013.001/6903271:user/release-keys'
Revision: '0'
ABI: 'x86'
Timestamp: 2021-09-14 15:50:28+0200
pid: 5853, tid: 5884, name: 1.ui  >>> com.example.flutter_trust_wallet_core_demo <<<
uid: 10163
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
Cause: null pointer dereference
    eax 00000000  ebx b932d2b8  ecx c68e33d8  edx 00000080
    edi 00000080  esi c68e3340
    ebp c68e3328  esp c68e32f0  eip b8e75668
backtrace:
      #00 pc 00334668  /data/app/~~cBT0PZrDHgSQxsmw20maZg==/com.example.flutter_trust_wallet_core_demo-wxKRrspKkc43AT1r0yic1Q==/base.apk!libTrustWalletCore.so (offset 0x56ed000) (random_buffer+40) (BuildId: 5aef3e97b6c4985144591f050cee1f4f7f0c2626)
      #01 pc 005dcd62  /data/app/~~cBT0PZrDHgSQxsmw20maZg==/com.example.flutter_trust_wallet_core_demo-wxKRrspKkc43AT1r0yic1Q==/base.apk!libTrustWalletCore.so (offset 0x56ed000) (mnemonic_generate+82) (BuildId: 5aef3e97b6c4985144591f050cee1f4f7f0c2626)
      #02 pc 00400607  /data/app/~~cBT0PZrDHgSQxsmw20maZg==/com.example.flutter_trust_wallet_core_demo-wxKRrspKkc43AT1r0yic1Q==/base.apk!libTrustWalletCore.so (offset 0x56ed000) (TW::HDWallet::HDWallet(int, std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> > const&)+231) (BuildId: 5aef3e97b6c4985144591f050cee1f4f7f0c2626)
      #03 pc 004b20dc  /data/app/~~cBT0PZrDHgSQxsmw20maZg==/com.example.flutter_trust_wallet_core_demo-wxKRrspKkc43AT1r0yic1Q==/base.apk!libTrustWalletCore.so (offset 0x56ed000) (TWHDWalletCreate+204) (BuildId: 5aef3e97b6c4985144591f050cee1f4f7f0c2626)
      #04 pc 00003f5f  <anonymous:c3880000>
Lost connection to device.

When trying out other library function calls (e.g. TWMnemonicSuggest), they work without a problem.

Do you have any idea why the null pointer exception occurs?

[weishirongzhen]

x86 platform are not support fully now, please use physical device.

[svdo7]

x86 platform are not support fully now, please use physical device.

Thank you very much for the quick response. I will try on a physical device.