Java edition
macOS 10.15.1 (19B88)

Minecraft would not start

error message :

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff6b7cd49a __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff6b88a6cb pthread_kill + 384
2 libsystem_c.dylib 0x00007fff6b755a1c abort + 120
3 libc++abi.dylib 0x00007fff687febc8 abort_message + 231
4 libc++abi.dylib 0x00007fff687fed64 demangling_terminate_handler() + 238
5 libobjc.A.dylib 0x00007fff6a31d7c2 _objc_terminate() + 104
6 libc++abi.dylib 0x00007fff6880bda7 std::__terminate(void ()) + 8
7 libc++abi.dylib 0x00007fff6880bb55 _cxxabiv1::failed_throw(cxxabiv1::_cxa_exception*) + 27
8 libc++abi.dylib 0x00007fff687fd34f __cxa_throw + 113
9 libc++abi.dylib 0x00007fff687fc74f operator new(unsigned long) + 95
10 libc++.1.dylib 0x00007fff687a9778 std::_1::basic_string<char, std::1::char_traits<char>, std::1::allocator<char> >::basic_string(std::1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> > const&) + 108
11 com.mojang.mclauncher 0x0000000103470023 controller::mergeUser(model::User&, model::PersistentUserData const&, std::_1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> >) + 339
12 com.mojang.mclauncher 0x0000000103471836 controller::loadIntoUsers(model::Users&, model::LauncherProfilesFile const&) + 246
13 com.mojang.mclauncher 0x00000001033c2686 controller::LauncherController::loadLauncherProfilesData() + 118
14 com.mojang.mclauncher 0x00000001033c17f0 controller::LauncherController::LauncherController(mojang::filesystem::base_filesystem&, mojang::filesystem::path const&, nonstd::optional_lite::optional<JavaInstallation> const&, nonstd::optional_lite::optional<mojang::filesystem::path> const&, nonstd::optional_lite::optional<std::_1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> > > const&, bool) + 992
15 com.mojang.mclauncher 0x00000001033c2ab4 controller::LauncherController::LauncherController(mojang::filesystem::base_filesystem&, mojang::filesystem::path const&, nonstd::optional_lite::optional<JavaInstallation> const&, nonstd::optional_lite::optional<mojang::filesystem::path> const&, nonstd::optional_lite::optional<std::_1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> > > const&, bool) + 20
16 com.mojang.mclauncher 0x00000001032e9cb8 RunLauncher + 3864
17 com.mojang.minecraftlauncher 0x0000000101555c29 LauncherPlugin::RunLauncher(std::_1::basic_string<char, std::1::char_traits<char>, std::1::allocator<char> > const&, std::1::basic_string<char, std::1::char_traits<char>, std::1::allocator<char> > const&, std::1::basic_string<char, std::1::char_traits<char>, std::_1::allocator<char> > const&, int, char**) const + 105
18 com.mojang.minecraftlauncher 0x000000010150002f StartLibrary(Settings&, int, char**) + 2703
19 com.mojang.minecraftlauncher 0x00000001014f4bd5 main + 2005
20 libdyld.dylib 0x00007fff6b67e2e5 start + 1

Thread 1:
0 libsystem_pthread.dylib 0x00007fff6b88756c start_wqthread + 0

Thread 2:
0 libsystem_pthread.dylib 0x00007fff6b88756c start_wqthread + 0

Thread 3:
0 libsystem_kernel.dylib 0x00007fff6b7ca916 __psynch_cvwait + 10
1 libsystem_pthread.dylib 0x00007fff6b88b040 _pthread_cond_wait + 701
2 libc++.1.dylib 0x00007fff687ae941 std::_1::condition_variable::do_timed_wait(std::1::unique_lock<std::1::mutex>&, std::1::chrono::time_point<std::1::chrono::system_clock, std::1::chrono::duration<long long, std::_1::ratio<1l, 1000000000l> > >) + 93
3 com.mojang.minecraftlauncher 0x000000010151a3ec mojang::net::NetQueuePrivate::thread_fn() + 1036
4 com.mojang.minecraftlauncher 0x000000010151adc4 void* std::_1::thread_proxy<std::_1::tuple<void (mojang::net::NetQueuePrivate::)(), mojang::net::NetQueuePrivate> >(void*) + 116
5 libsystem_pthread.dylib 0x00007fff6b88ad36 _pthread_start + 125
6 libsystem_pthread.dylib 0x00007fff6b88758f thread_start + 15

Thread 4:
0 libsystem_pthread.dylib 0x00007fff6b88756c start_wqthread + 0

Thread 5:
0 libsystem_pthread.dylib 0x00007fff6b88756c start_wqthread + 0

Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000000000000 rbx: 0x000000010db40dc0 rcx: 0x00007ffeee70fab8 rdx: 0x0000000000000000
rdi: 0x0000000000000307 rsi: 0x0000000000000006 rbp: 0x00007ffeee70fae0 rsp: 0x00007ffeee70fab8
r8: 0x00007ffeee70f980 r9: 0x00007ffeee70fb50 r10: 0x0000000000000000 r11: 0x0000000000000246
r12: 0x0000000000000307 r13: 0x0000003000000008 r14: 0x0000000000000006 r15: 0x0000000000000016
rip: 0x00007fff6b7cd49a rfl: 0x0000000000000246 cr2: 0x00007fff951f13c8