下载安装ros工具箱后，运行第一个案例，报错如下，请问如何解决？
ERROR: JavaCall.JavaCallError("Error calling Java: java.lang.NoClassDefFoundError: ros/rosinit")
[3] metaclass
@ C:\Users\Public\TongYuan.julia\packages\JavaCall\IAoV2\src\core.jl:502 [inlined]
[4] get_method_id(jnifun::typeof(JavaCall.JNI.GetStaticMethodID), obj::Symbol, method::String, rettype::Type, argtypes::Tuple{DataType})
@ JavaCall C:\Users\Public\TongYuan.julia\packages\JavaCall\IAoV2\src\core.jl:384
[5] get_method_id(typ::Type{JavaObject{Symbol("ros.rosinit")}}, method::String, rettype::Type, argtypes::Tuple{DataType})
@ JavaCall C:\Users\Public\TongYuan.julia\packages\JavaCall\IAoV2\src\core.jl:389
[6] jcall(ref::Type, method::String, rettype::Type, argtypes::Tuple{DataType}, args::Vector{Any})
@ JavaCall C:\Users\Public\TongYuan.julia\packages\JavaCall\IAoV2\src\core.jl:370
[7] rosinit()
@ ros e:\MyDownload\机器人ROS工具箱\机器人ROS工具箱\HITROS\src\rosinit.jl:30
[8] top-level scope
@ e:\MyDownload\机器人ROS工具箱\机器人ROS工具箱\HITROS\examples\exampleHelperROSCreateSampleNetwork.jl:2