Traceback (most recent call last): File "/usr/local/bin/waf", line 320, in <module> Scripting.Main() File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Scripting.py", line 211, in Main ret = bld.compile() File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Build.py", line 177, in compile ret = executor.start() File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Runner.py", line 241, in start if not proc.must_run(): File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Task.py", line 196, in must_run self.m_dep_sig = self.m_scanner.get_signature(self) File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Scan.py", line 28, in get_signature ret = self._get_signature(task) File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Scan.py", line 74, in _get_signature return self._get_signature_default_strong(task) File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Scan.py", line 100, in _get_signature_default_strong for node in task.m_inputs: add_node_sig(node) File "/usr/local/lib/waf-1.1.0-1718388348/wafadmin/Scan.py", line 97, in add_node_sig m.update(tree.m_tstamp_variants[variant][node])KeyError: </home/gjc/projects/ns-3/ns-3-waf/bindings/python/pybindings.py>