port directory problem

[Stan Benoit]

all,

How  can i get rid of this directory

main# rm -rf work_1
rm:
work/mozilla/modules/oji/tests/src/JNI/CallingInstanceMethods/CallNonvirtualIntMethod_30.cpp:
Invalid argument
rm: work/mozilla/modules/oji/tests/src/JNI/CallingInstanceMethods:
Directory not empty
rm: work/mozilla/modules/oji/tests/src/JNI: Directory not empty
rm: work/mozilla/modules/oji/tests/src: Directory not empty
rm: work/mozilla/modules/oji/tests: Directory not empty
rm: work/mozilla/modules/oji: Directory not empty
rm: work/mozilla/modules: Directory not empty
rm: work/mozilla: Directory not empty
rm: work: Directory not empty

Thanks

Stan Benoit