Vector Path api does not support "C" and "Q" in svg path data

I created a vector using the figma plugin api accoding to the api docmentation and refered to “the subset of the SVG path format part”. But got the error message of “in set_vectorPaths: Failed to convert path. C is not a valid first command
at VectorNode.set_vectorPaths [as vectorPaths]” and "“in set_vectorPaths: Failed to convert path. Q is not a valid first command
at VectorNode.set_vectorPaths [as vectorPaths]” "