claude-code - 💡(How to fix) Fix [BUG]Failed to start Claude's workspace

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Error Message

Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000 "exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"}, Claude should run workspace without error

Error Messages/Logs

Error Domain=VZErrorDomain Code=1 "The virtual machine failed to start." UserInfo={NSLocalizedFailure=Internal Virtualization error., NSLocalizedFailureReason=The virtual machine failed to start.}

Fix Action

Fix / Workaround

Triggered by Thread: 1, Dispatch Queue: com.apple.virtualization.virtual-machine-service

Thread 0: 0 libsystem_kernel.dylib 0x184c89520 __semwait_signal_nocancel + 8 1 libsystem_c.dylib 0x184b7b4d8 nanosleep$NOCANCEL + 208 2 libsystem_c.dylib 0x184b7b3ac sleep$NOCANCEL + 52 3 libdispatch.dylib 0x184b1dfcc _dispatch_queue_cleanup2 + 212 4 libsystem_pthread.dylib 0x184cc3700 _pthread_tsd_cleanup + 620 5 libsystem_pthread.dylib 0x184cc6334 _pthread_exit + 84 6 libsystem_pthread.dylib 0x184cc3430 pthread_exit + 88 7 libdispatch.dylib 0x184b19b88 dispatch_main + 136 8 libxpc.dylib 0x1849abaac _xpc_objc_main + 736 9 libxpc.dylib 0x1849bdae4 _xpc_main + 40 10 libxpc.dylib 0x1849ab628 xpc_main + 64 11 com.apple.Virtualization.VirtualMachine 0x1008b7148 0x100894000 + 143688 12 dyld 0x184907e00 start + 6992

Thread 1 Crashed:: Dispatch queue: com.apple.virtualization.virtual-machine-service 0 libsystem_kernel.dylib 0x184c8a5e8 __pthread_kill + 8 1 libsystem_pthread.dylib 0x184cc58d8 pthread_kill + 296 2 libsystem_c.dylib 0x184bcc644 abort + 148 3 libc++abi.dylib 0x184c7c72c __abort_message + 132 4 libc++abi.dylib 0x184c69570 demangling_terminate_handler() + 272 5 libobjc.A.dylib 0x1848848a4 _objc_terminate() + 172 6 libc++abi.dylib 0x184c7975c std::__terminate(void ()()) + 16 7 libc++abi.dylib 0x184c68e80 __cxa_rethrow + 188 8 DiskImages2 0x244ed1534 void ref::tagged_ptr<di_asif::details::table, unsigned long long>::make_value<di_asif::details::dir&, std::__1::shared_ptr<Backend>&, unsigned long long&, unsigned long long>(di_asif::details::dir&, std::__1::shared_ptr<Backend>&, unsigned long long&, unsigned long long&&) + 76 9 DiskImages2 0x244ed1128 di_asif::details::dir::load_create_table(di_asif::details::ContextASIF&, unsigned long long, unsigned long long, bool, bool) + 240 10 DiskImages2 0x244ed9160 void di_asif::details::dir::get_extents_for_table<std::__1::insert_iterator<std::__1::set<unsigned long long, std::__1::less<unsigned long long>, std::__1::allocator<unsigned long long>>>>(di_asif::details::ContextASIF&, unsigned long long, unsigned long long, std::__1::insert_iterator<std::__1::set<unsigned long long, std::__1::less<unsigned long long>, std::__1::allocator<unsigned long long>>>) + 52 11 DiskImages2 0x244ed8ef8 DiskImageASIF::get_used_extents() + 188 12 DiskImages2 0x244ed9618 DiskImageASIF::DiskImageASIF(std::__1::shared_ptr<Backend> const&, di_asif::header const&, std::__1::pair<unsigned long, unsigned long long>, di_asif::options const&) + 560 13 DiskImages2 0x244e5c0b4 decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<2ul>::__dispatch[abi:nqe210106]<std::__1::__variant_detail::__visitation::__variant::__value_visitor<diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr()::$_0>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, std::__1::monostate, udif::header, di_asif::header, raw_header, pstack_header, plugin_header>&>(std::__1::__variant_detail::__visitation::__variant::__value_visitor<diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr()::$_0>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, std::__1::monostate, udif::header, di_asif::header, raw_header, pstack_header, plugin_header>&) + 184 14 DiskImages2 0x244e51f1c diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr() + 68 15 DiskImages2 0x244e51b8c diskimage_uio::details::diskimage_open_params_impl::transfer_disk_image_ownership() + 56 16 DiskImages2 0x244e516dc diskimage_uio::details::diskimage_impl::diskimage_impl(diskimage_uio::diskimage_open_params&&) + 160 17 DiskImages2 0x244e56b88 diskimage_uio::details::diskimage_impl diskimage_uio::details::diskimage_impl::create_diskimage_impl<std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>>(std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>, std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>, unsigned int) + 368 18 DiskImages2 0x244e56e70 diskimage_uio::diskimage::create(std::__1::vector<diskimage_uio::diskimage_open_params_pair, std::__1::allocator<diskimage_uio::diskimage_open_params_pair>>&&, unsigned int) + 36 19 com.apple.Virtualization.VirtualMachine 0x10093a798 0x100894000 + 681880 20 com.apple.Virtualization.VirtualMachine 0x100929288 0x100894000 + 610952 21 com.apple.Virtualization.VirtualMachine 0x100939f5c 0x100894000 + 679772 22 com.apple.Virtualization.VirtualMachine 0x10092abe4 0x100894000 + 617444 23 com.apple.Virtualization.VirtualMachine 0x10095aa18 0x100894000 + 813592 24 com.apple.Virtualization.VirtualMachine 0x100aad58c 0x100894000 + 2200972 25 com.apple.Virtualization.VirtualMachine 0x100b1a9b4 0x100894000 + 2648500 26 com.apple.Virtualization.VirtualMachine 0x100b1aa50 0x100894000 + 2648656 27 com.apple.Virtualization.VirtualMachine 0x100b1a1d0 0x100894000 + 2646480 28 com.apple.Virtualization.VirtualMachine 0x100b88d3c 0x100894000 + 3099964 29 com.apple.Virtualization.VirtualMachine 0x1008fc354 0x100894000 + 426836 30 com.apple.Virtualization.VirtualMachine 0x1008f57cc 0x100894000 + 399308 31 com.apple.Virtualization.VirtualMachine 0x1008b316c 0x100894000 + 127340 32 com.apple.Virtualization.VirtualMachine 0x1008c6034 0x100894000 + 204852 33 libxpc.dylib 0x1849a148c _xpc_connection_call_event_handler + 112 34 libxpc.dylib 0x18499fcdc _xpc_connection_mach_event + 1488 35 libdispatch.dylib 0x184b244f8 _dispatch_client_callout4 + 16 36 libdispatch.dylib 0x184b26e94 _dispatch_mach_msg_invoke + 480 37 libdispatch.dylib 0x184b12e98 _dispatch_lane_serial_drain + 332 38 libdispatch.dylib 0x184b27bec _dispatch_mach_invoke + 472 39 libdispatch.dylib 0x184b12e98 _dispatch_lane_serial_drain + 332 40 libdispatch.dylib 0x184b13b64 _dispatch_lane_invoke + 448 41 libdispatch.dylib 0x184b1de34 _dispatch_root_queue_drain_deferred_wlh + 284 42 libdispatch.dylib 0x184b1d734 _dispatch_workloop_worker_thread + 720 43 libsystem_pthread.dylib 0x184cc1ec0 _pthread_wqthread + 292 44 libsystem_pthread.dylib 0x184cc0c10 start_wqthread + 8

Code Example

Failed to start Claude's workspace
Error Domain=VZErrorDomain Code=1 "The virtual machine failed to start." UserInfo={NSLocalizedFailure=Internal Virtualization error., NSLocalizedFailureReason=The virtual machine failed to start.}
Restarting Claude or your computer sometimes resolves this. If it persists, you can reinstall the workspace.
RAW_BUFFERClick to expand / collapse

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

When I open Claude workspace, it says it fails to open the workspace and that I should reinstall it. Once ii reinstall the workspace it still gives me the same message.

  • Claude desktop: Claude 1.8089.1 (b98a06) 2026-05-19T18:28:48.000Z

Translated Report (Full Report Below)

Process: com.apple.Virtualization.VirtualMachine [14127] Path: /System/Library/Frameworks/Virtualization.framework/Versions/A/XPCServices/com.apple.Virtualization.VirtualMachine.xpc/Contents/MacOS/com.apple.Virtualization.VirtualMachine Identifier: com.apple.Virtualization.VirtualMachine Version: 1.0 (259.6.4) Build Info: Virtualization-259006004000000~21 Code Type: ARM-64 (Native) Role: Default Parent Process: launchd [1] Coalition: com.anthropic.claudefordesktop [1367] Responsible Process: Claude [1431] User ID: 502

Date/Time: 2026-05-20 08:53:36.8867 -0400 Launch Time: 2026-05-20 08:53:36.7650 -0400 Hardware Model: Mac15,12 OS Version: macOS 26.5 (25F71) Release Type: User

Crash Reporter Key: 7D407811-E293-70C6-F4BE-F6C446F1288B Incident Identifier: F2992C3D-F649-4826-B3D7-FAFD761E48A1

Time Awake Since Boot: 1300 seconds

System Integrity Protection: enabled

Triggered by Thread: 1, Dispatch Queue: com.apple.virtualization.virtual-machine-service

Exception Type: EXC_CRASH (SIGABRT) Exception Codes: 0x0000000000000000, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 6, Abort trap: 6 Terminating Process: com.apple.Virtualization.Virtual [14127]

Application Specific Information: abort() called

Thread 0: 0 libsystem_kernel.dylib 0x184c89520 __semwait_signal_nocancel + 8 1 libsystem_c.dylib 0x184b7b4d8 nanosleep$NOCANCEL + 208 2 libsystem_c.dylib 0x184b7b3ac sleep$NOCANCEL + 52 3 libdispatch.dylib 0x184b1dfcc _dispatch_queue_cleanup2 + 212 4 libsystem_pthread.dylib 0x184cc3700 _pthread_tsd_cleanup + 620 5 libsystem_pthread.dylib 0x184cc6334 _pthread_exit + 84 6 libsystem_pthread.dylib 0x184cc3430 pthread_exit + 88 7 libdispatch.dylib 0x184b19b88 dispatch_main + 136 8 libxpc.dylib 0x1849abaac _xpc_objc_main + 736 9 libxpc.dylib 0x1849bdae4 _xpc_main + 40 10 libxpc.dylib 0x1849ab628 xpc_main + 64 11 com.apple.Virtualization.VirtualMachine 0x1008b7148 0x100894000 + 143688 12 dyld 0x184907e00 start + 6992

Thread 1 Crashed:: Dispatch queue: com.apple.virtualization.virtual-machine-service 0 libsystem_kernel.dylib 0x184c8a5e8 __pthread_kill + 8 1 libsystem_pthread.dylib 0x184cc58d8 pthread_kill + 296 2 libsystem_c.dylib 0x184bcc644 abort + 148 3 libc++abi.dylib 0x184c7c72c __abort_message + 132 4 libc++abi.dylib 0x184c69570 demangling_terminate_handler() + 272 5 libobjc.A.dylib 0x1848848a4 _objc_terminate() + 172 6 libc++abi.dylib 0x184c7975c std::__terminate(void ()()) + 16 7 libc++abi.dylib 0x184c68e80 __cxa_rethrow + 188 8 DiskImages2 0x244ed1534 void ref::tagged_ptr<di_asif::details::table, unsigned long long>::make_value<di_asif::details::dir&, std::__1::shared_ptr<Backend>&, unsigned long long&, unsigned long long>(di_asif::details::dir&, std::__1::shared_ptr<Backend>&, unsigned long long&, unsigned long long&&) + 76 9 DiskImages2 0x244ed1128 di_asif::details::dir::load_create_table(di_asif::details::ContextASIF&, unsigned long long, unsigned long long, bool, bool) + 240 10 DiskImages2 0x244ed9160 void di_asif::details::dir::get_extents_for_table<std::__1::insert_iterator<std::__1::set<unsigned long long, std::__1::less<unsigned long long>, std::__1::allocator<unsigned long long>>>>(di_asif::details::ContextASIF&, unsigned long long, unsigned long long, std::__1::insert_iterator<std::__1::set<unsigned long long, std::__1::less<unsigned long long>, std::__1::allocator<unsigned long long>>>) + 52 11 DiskImages2 0x244ed8ef8 DiskImageASIF::get_used_extents() + 188 12 DiskImages2 0x244ed9618 DiskImageASIF::DiskImageASIF(std::__1::shared_ptr<Backend> const&, di_asif::header const&, std::__1::pair<unsigned long, unsigned long long>, di_asif::options const&) + 560 13 DiskImages2 0x244e5c0b4 decltype(auto) std::__1::__variant_detail::__visitation::__base::__dispatcher<2ul>::__dispatch[abi:nqe210106]<std::__1::__variant_detail::__visitation::__variant::__value_visitor<diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr()::$_0>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, std::__1::monostate, udif::header, di_asif::header, raw_header, pstack_header, plugin_header>&>(std::__1::__variant_detail::__visitation::__variant::__value_visitor<diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr()::$_0>&&, std::__1::__variant_detail::__base<(std::__1::__variant_detail::_Trait)1, std::__1::monostate, udif::header, di_asif::header, raw_header, pstack_header, plugin_header>&) + 184 14 DiskImages2 0x244e51f1c diskimage_uio::details::diskimage_open_params_impl::create_diskimage_from_hdr() + 68 15 DiskImages2 0x244e51b8c diskimage_uio::details::diskimage_open_params_impl::transfer_disk_image_ownership() + 56 16 DiskImages2 0x244e516dc diskimage_uio::details::diskimage_impl::diskimage_impl(diskimage_uio::diskimage_open_params&&) + 160 17 DiskImages2 0x244e56b88 diskimage_uio::details::diskimage_impl diskimage_uio::details::diskimage_impl::create_diskimage_impl<std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>>(std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>, std::__1::__wrap_iter<diskimage_uio::diskimage_open_params_pair*>, unsigned int) + 368 18 DiskImages2 0x244e56e70 diskimage_uio::diskimage::create(std::__1::vector<diskimage_uio::diskimage_open_params_pair, std::__1::allocator<diskimage_uio::diskimage_open_params_pair>>&&, unsigned int) + 36 19 com.apple.Virtualization.VirtualMachine 0x10093a798 0x100894000 + 681880 20 com.apple.Virtualization.VirtualMachine 0x100929288 0x100894000 + 610952 21 com.apple.Virtualization.VirtualMachine 0x100939f5c 0x100894000 + 679772 22 com.apple.Virtualization.VirtualMachine 0x10092abe4 0x100894000 + 617444 23 com.apple.Virtualization.VirtualMachine 0x10095aa18 0x100894000 + 813592 24 com.apple.Virtualization.VirtualMachine 0x100aad58c 0x100894000 + 2200972 25 com.apple.Virtualization.VirtualMachine 0x100b1a9b4 0x100894000 + 2648500 26 com.apple.Virtualization.VirtualMachine 0x100b1aa50 0x100894000 + 2648656 27 com.apple.Virtualization.VirtualMachine 0x100b1a1d0 0x100894000 + 2646480 28 com.apple.Virtualization.VirtualMachine 0x100b88d3c 0x100894000 + 3099964 29 com.apple.Virtualization.VirtualMachine 0x1008fc354 0x100894000 + 426836 30 com.apple.Virtualization.VirtualMachine 0x1008f57cc 0x100894000 + 399308 31 com.apple.Virtualization.VirtualMachine 0x1008b316c 0x100894000 + 127340 32 com.apple.Virtualization.VirtualMachine 0x1008c6034 0x100894000 + 204852 33 libxpc.dylib 0x1849a148c _xpc_connection_call_event_handler + 112 34 libxpc.dylib 0x18499fcdc _xpc_connection_mach_event + 1488 35 libdispatch.dylib 0x184b244f8 _dispatch_client_callout4 + 16 36 libdispatch.dylib 0x184b26e94 _dispatch_mach_msg_invoke + 480 37 libdispatch.dylib 0x184b12e98 _dispatch_lane_serial_drain + 332 38 libdispatch.dylib 0x184b27bec _dispatch_mach_invoke + 472 39 libdispatch.dylib 0x184b12e98 _dispatch_lane_serial_drain + 332 40 libdispatch.dylib 0x184b13b64 _dispatch_lane_invoke + 448 41 libdispatch.dylib 0x184b1de34 _dispatch_root_queue_drain_deferred_wlh + 284 42 libdispatch.dylib 0x184b1d734 _dispatch_workloop_worker_thread + 720 43 libsystem_pthread.dylib 0x184cc1ec0 _pthread_wqthread + 292 44 libsystem_pthread.dylib 0x184cc0c10 start_wqthread + 8

Thread 2:

Thread 3: 0 libsystem_kernel.dylib 0x184c89558 __sigsuspend_nocancel + 8 1 libdispatch.dylib 0x184b1e0c8 _dispatch_sigsuspend + 48 2 libdispatch.dylib 0x184b1e098 _dispatch_sig_thread + 56

Thread 4:

Thread 5:: com.apple.virtualization.thread.virtual-clock 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6154 _pthread_cond_wait + 1024 2 Hypervisor 0x22d1cacd4 HvCore::VirtualClock::thread_body() + 312 3 Hypervisor 0x22d1cab38 void* std::__1::__thread_proxy[abi:fqe210106]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_deletestd::__1::__thread_struct>, void (HvCore::VirtualClock::)(), HvCore::VirtualClock>>(void*) + 88 4 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 5 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 6:: com.apple.virtualization.thread.raw-disk-image-io-0 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6128 _pthread_cond_wait + 980 2 com.apple.Virtualization.VirtualMachine 0x100c09354 0x100894000 + 3625812 3 com.apple.Virtualization.VirtualMachine 0x100c09210 0x100894000 + 3625488 4 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 5 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 7:: com.apple.virtualization.thread.raw-disk-image-io-1 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6128 _pthread_cond_wait + 980 2 com.apple.Virtualization.VirtualMachine 0x100c09354 0x100894000 + 3625812 3 com.apple.Virtualization.VirtualMachine 0x100c09210 0x100894000 + 3625488 4 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 5 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 8:: com.apple.virtualization.thread.raw-disk-image-io-2 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6128 _pthread_cond_wait + 980 2 com.apple.Virtualization.VirtualMachine 0x100c09354 0x100894000 + 3625812 3 com.apple.Virtualization.VirtualMachine 0x100c09210 0x100894000 + 3625488 4 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 5 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 9:: com.apple.virtualization.thread.raw-disk-image-io-3 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6128 _pthread_cond_wait + 980 2 com.apple.Virtualization.VirtualMachine 0x100c09354 0x100894000 + 3625812 3 com.apple.Virtualization.VirtualMachine 0x100c09210 0x100894000 + 3625488 4 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 5 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 10: 0 libsystem_kernel.dylib 0x184c8550c __psynch_cvwait + 8 1 libsystem_pthread.dylib 0x184cc6128 _pthread_cond_wait + 980 2 libc++.1.dylib 0x184bdb858 std::__1::condition_variable::wait(std::__1::unique_lockstd::__1::mutex&) + 32 3 DiskImages2 0x244ec8628 di_asif::details::dir::defrag(std::__1::function<int (di_asif::details::ContextASIF&)>) + 200 4 DiskImages2 0x244efff54 void* std::__1::__thread_proxy[abi:nqe210106]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_deletestd::__1::__thread_struct>, di_asif::details::dir::dir(DiskImageASIF&, unsigned long long, unsigned int, unsigned short, unsigned long long, unsigned long, Backend*, std::__1::function<int (di_asif::details::ContextASIF&)> const&, std::__1::optional<analytics_collector_t>&)::$_0>>(void*) + 92 5 libsystem_pthread.dylib 0x184cc5c58 _pthread_start + 136 6 libsystem_pthread.dylib 0x184cc0c1c thread_start + 8

Thread 1 crashed with ARM Thread State (64-bit): x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000 x4: 0x0000000184c7cd68 x5: 0x000000016f5ea420 x6: 0x000000000000006b x7: 0xfffff0003ffff800 x8: 0x825d48565b73572f x9: 0x8268c857342c672f x10: 0x0000000000000002 x11: 0x00000000fffffffd x12: 0x0000000000000000 x13: 0x0000000000000000 x14: 0x0000000000000000 x15: 0x0000000000000000 x16: 0x0000000000000148 x17: 0x00000001f2483000 x18: 0x0000000000000000 x19: 0x0000000000000006 x20: 0x0000000000001703 x21: 0x000000016f5f30e0 x22: 0x434c4e47432b2b00 x23: 0x0000000000000001 x24: 0x000000016f5ea5a0 x25: 0x0000000105c00000 x26: 0x0000000105c41048 x27: 0x0000000000000000 x28: 0x0000000000000001 fp: 0x000000016f5ea390 lr: 0x0000000184cc58d8 sp: 0x000000016f5ea370 pc: 0x0000000184c8a5e8 cpsr: 0x40001000 far: 0x0000000000000000 esr: 0x56000080 (Syscall)

Binary Images: 0x100894000 - 0x100cbffff com.apple.Virtualization.VirtualMachine (1.0) <66b9e0cd-191e-3886-8fa1-5d52d6d089ae> /System/Library/Frameworks/Virtualization.framework/Versions/A/XPCServices/com.apple.Virtualization.VirtualMachine.xpc/Contents/MacOS/com.apple.Virtualization.VirtualMachine 0x184c81000 - 0x184cbe2af libsystem_kernel.dylib () <cc1cf985-bc65-3725-809f-4c1e36b8f4ba> /usr/lib/system/libsystem_kernel.dylib 0x184b54000 - 0x184bd4d9f libsystem_c.dylib () <694b7881-1bf3-3d0f-8f19-b50ae4e8ef8a> /usr/lib/system/libsystem_c.dylib 0x184b09000 - 0x184b5023f libdispatch.dylib () <f071efe4-299f-3089-acc4-0025b8ffb52a> /usr/lib/system/libdispatch.dylib 0x184cbf000 - 0x184ccbb3b libsystem_pthread.dylib () <4f33683c-18c8-39a1-800b-2e3bd43bcc13> /usr/lib/system/libsystem_pthread.dylib 0x184993000 - 0x1849e755f libxpc.dylib () <c40fcae8-7a17-3d82-87cb-3da4802adef1> /usr/lib/system/libxpc.dylib 0x1848e8000 - 0x18498e217 dyld () <a237ef81-b68b-37ba-a165-92c965529534> /usr/lib/dyld 0x0 - 0xffffffffffffffff ??? () <00000000-0000-0000-0000-000000000000> ??? 0x184c66000 - 0x184c8075f libc++abi.dylib () <e482d257-e5a0-3816-bd97-7b39342958da> /usr/lib/libc++abi.dylib 0x184860000 - 0x1848b2b4b libobjc.A.dylib () <ff1d8ae4-abef-35f1-a30a-1183b9cb414f> /usr/lib/libobjc.A.dylib 0x244dd6000 - 0x24502337f com.apple.DiskImages2 (524.120.8) <17571623-6fbb-3622-ad35-27924ed5e028> /System/Library/PrivateFrameworks/DiskImages2.framework/Versions/A/DiskImages2 0x22d1b0000 - 0x22d228dad com.apple.Hypervisor (1.0) <5ace59ba-c865-3f3a-8a7f-f90eedf9b6a6> /System/Library/Frameworks/Hypervisor.framework/Versions/A/Hypervisor 0x184bd5000 - 0x184c65ae7 libc++.1.dylib () <5013c0f8-84a9-3b56-9feb-c353816a750f> /usr/lib/libc++.1.dylib

External Modification Summary: Calls made by other processes targeting this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by this process: task_for_pid: 0 thread_create: 0 thread_set_state: 0 Calls made by all processes on this machine: task_for_pid: 0 thread_create: 0 thread_set_state: 0

VM Region Summary: ReadOnly portion of Libraries: Total=1.1G resident=0K(0%) swapped_out_or_unallocated=1.1G(100%) Writable regions: Total=4.2G written=352K(0%) resident=352K(0%) swapped_out=0K(0%) unallocated=4.2G(100%)

                            VIRTUAL   REGION

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Full Report

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},
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  ],
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], "experiments" : [

] } }

What Should Happen?

Claude should run workspace without error

Error Messages/Logs

Failed to start Claude's workspace
Error Domain=VZErrorDomain Code=1 "The virtual machine failed to start." UserInfo={NSLocalizedFailure=Internal Virtualization error., NSLocalizedFailureReason=The virtual machine failed to start.}
Restarting Claude or your computer sometimes resolves this. If it persists, you can reinstall the workspace.

Steps to Reproduce

I don't know

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

1.8089.1 (b98a06)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

<img width="691" height="221" alt="Image" src="https://github.com/user-attachments/assets/ece6d05a-bf85-4ad7-9c01-a2efd2f571a6" /> <img width="275" height="221" alt="Image" src="https://github.com/user-attachments/assets/1c1066e5-5d09-4f2f-ae0b-f7de5699107c" />

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