无法访问变量target_urllist

[ghost]

Traceback (most recent call last): File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 2309, in call return self.wsgi_app(environ, start_response) File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 2295, in wsgi_app response = self.handle_exception(e) File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 1741, in handle_exception reraise(exc_type, exc_value, tb) File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 2292, in wsgi_app response = self.full_dispatch_request() File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 1815, in full_dispatch_request rv = self.handle_user_exception(e) File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 1718, in handle_user_exception reraise(exc_type, exc_value, tb) File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 1813, in full_dispatch_request rv = self.dispatch_request() File "C:\smb\AZscanner\web\Aex2\lib\site-packages\flask\app.py", line 1799, in dispatch_request return self.view_functionsrule.endpoint File "C:\smb\AZscanner\web\web\trace.py", line 41, in trace return render_template("trace.html", target = target,target_urllist=target_urllist,iplist=iplist,collect_dirs=collect_dirs,collect_ports=collect_ports,subdomain=subdomain) UnboundLocalError: local variable 'target_urllist' referenced before assignment