une erreur est survenue

TypeError: unsupported operand type(s) for >>: 'builtin_function_or_method' and 'file'
CubicWeb version: 3.26.16
Cube compowritings version: 0.8.0
Cube registration version: 0.8.0
Cube relationwidget version: 0.5.2
Cube squareui version: 1.1.3
Cube bootstrap version: 1.6.5
Cube card version: 1.1.2
Cube ckeditor version: 0.2.0
Cube file version: 2.3.0
Cube forgotpwd version: 0.9.2
Cube rememberme version: 1.2.0