android编译报错问题

[ 50% 1/2] glob art
ninja: error: 'prebuilts/misc/linux-x86/flex/flex-2.5.39', needed by 'out/soong/.intermediates/system/tools/aidl/libaidl-common/linux_x86_64_static/gen/lex/system/tools/aidl/aidl_language_l.cpp', missing and no known rule to make it
14:15:12 ninja failed with: exit status 1

已解决，谢谢。