I followed the tutorial in https://pixhawk.org/dev/hil/jmavsim. but failed with follow error
➜ jMAVSim git:(master) ant
Buildfile: /Users/wukan/src/jMAVSim/build.xml
make_dirs:
[mkdir] Created dir: /Users/wukan/src/jMAVSim/out/production/jMAVSim
compile:
[javac] Compiling 73 source files to /Users/wukan/src/jMAVSim/out/production/jMAVSim
[javac] /Users/wukan/src/jMAVSim/src/me/drton/jmavsim/MAVLinkHILSystem.java:188: 错误: 找不到符号
[javac] msg_hil_state.set(“rollspeed”, (float) v3d.getX());
[javac] ^
[javac] 符号: 方法 getX()
[javac] 位置: 类型为Vector3d的变量 v3d
[javac] /Users/wukan/src/jMAVSim/src/me/drton/jmavsim/MAVLinkHILSystem.java:189: 错误: 找不到符号