Cannot add member to bond

hi,

while adding member to bond0 and committing it fails to add member. Please find below snippet
[ interfaces bonding bond0 ]
PermissionError: [Errno 1] Operation not permitted

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File “/usr/libexec/vyos/services/vyos-configd”, line 157, in run_script
script.apply(c)
File “/usr/libexec/vyos/conf_mode/interfaces_bonding.py”, line 290, in apply
b.update(bond)
File “/usr/lib/python3/dist-packages/vyos/ifconfig/bond.py”, line 507, in update
self.add_port(interface)
File “/usr/lib/python3/dist-packages/vyos/ifconfig/bond.py”, line 313, in add_port
ret = self.set_interface(‘bond_add_port’, f’+{interface}')
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/vyos/ifconfig/control.py”, line 195, in set_interface
return self._set_sysfs(self.config, name, value)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/vyos/ifconfig/control.py”, line 178, in _set_sysfs
commited = self._write_sysfs(
^^^^^^^^^^^^^^^^^^
File “/usr/lib/python3/dist-packages/vyos/ifconfig/control.py”, line 144, in _write_sysfs
____________________________________
version : Version: VyOS 2026.02.13-0029-rolling
command : set interfaces bonding bond0 member interface eth4.
Please advise how to resolve this problem
TY

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