rt-thread studio版本是版本: 2.2.6，
stm32f4的资源包为0.2.2，
cjson软件包选择latst。
错误提示
toolchain_support_packages/arm/gnu_tools_for_arm_embedded_processors/5.4.1/bin/../lib/gcc/arm-none-eabi/5.4.1/../../../../arm-none-eabi/lib/armv7e-m/fpulibg.a(lib_a-sbrkr.o): In function `_sbrk_r': sbrkr.c:(.text._sbrk_r+0xc): undefined reference to `_sbrk'
collect2.exe: error: ld returned 1 exit status
make: *** [makefile:72: rtthread.elf] Error 1
Console-Error: 请启用libc组件
"make -j1 all" terminated with exit code 2. Build might be incomplete.
搜索说是要打开libc组件，使能libc，如下
编译结果依旧，不知道是否还需要修改哪个地方。
举报
