在fork别人的项目的时候，遇到了以下报错，请问有大佬知道怎么解决吗

PreconditionNotMetError: The Input variable Y(fc10_weights) has not been initialized. You may need to confirm if you put exe.run(startup_program) after optimizer.minimize function.
[Hint: Expected framework::product(y_dims) != 0, but received framework::product(y_dims):0 == 0:0.] at (/paddle/paddle/fluid/operators/mul_op.cc:61)
[operator < mul > error]