Failed to attach BPF program b'oncpu' to kprobe b'finish_task_switch' offcputime-bpfcc

I'm on Ubuntu 5.15.0-100-generic

built using the instructions for Ubuntu

I run:
```
/sbin/offcputime-bpfcc
```

```
3 warnings generated.
cannot attach kprobe, probe entry may not exist
Traceback (most recent call last):
File "/sbin/offcputime-bpfcc", line 234, in
b.attach_kprobe(event="finish_task_switch", fn_name="oncpu")
File "/usr/lib/python3/dist-packages/bcc/__init__.py", line 683, in attach_kprobe
raise Exception("Failed to attach BPF program %s to kprobe %s" %
Exception: Failed to attach BPF program b'oncpu' to kprobe b'finish_task_switch'
```

Would appreciate any help on this

Start with /sbin/offcputime-bpfcc and reproduce the failure on the reported Ubuntu kernel, focusing on the b.attach_kprobe call at line 234. Trace why finish_task_switch cannot be attached and verify that the tool runs successfully without the reported exception.

Written by the indexing model from the issue text.