When I use moveit to control my robot in jointspace, something is wrong with the trajectory.
```
[ERROR] [1496392685.974570252]:
Invalid Trajectory: start point deviates from current robot state more than 0.01
joint 'chest_to_neck': expected: 0.587594, current: 0.599906
```
Is there anything I can do to solve this problem?
In addition,I use `movegroup.setJointValueTarget` to set the value of the joints. How can I set and get the velocity of the joints.
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