模型选择控制器无法K帧显示

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模型选择控制器无法K帧显示但是我没加动画层，也没锁定控制器。
// Warning: file: C:/Program Files/Autodesk/Maya2018/scripts/others/doSetKeyframeArgList.mel line 632: Current manipulator and active objects have no keyable attributes, or animation layers are present and the BaseAnimation bar is not selected or locked.