Traceback (most recent call last):
  File "electrum/gui/qt/__init__.py", line 441, in _start_wizard_to_select_or_create_wallet
  File "electrum/daemon.py", line 487, in func_wrapper
  File "electrum/daemon.py", line 497, in load_wallet
  File "electrum/util.py", line 482, in do_profile
  File "electrum/daemon.py", line 522, in _load_wallet
electrum.wallet_db.WalletUnfinished

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "electrum/util.py", line 2004, in test_read_write_permissions
OSError: [Errno 30] Read-only file system: '/Zhenyu_wallet.tmptest.1527'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "electrum/storage.py", line 71, in __init__
  File "electrum/util.py", line 2010, in test_read_write_permissions
OSError: [Errno 30] Read-only file system: '/Zhenyu_wallet.tmptest.1527'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "electrum/gui/qt/wizard/wizard.py", line 212, in on_next_button_clicked
  File "electrum/gui/qt/wizard/wallet.py", line 184, in is_finalized
  File "electrum/storage.py", line 73, in __init__
electrum.storage.StorageReadWriteError: [Errno 30] Read-only file system: '/Zhenyu_wallet.tmptest.1527'