undefined reference to `stringBufferCreate' `stringBufferFree'

[kingsjl]

Arduino:1.8.5 (Windows 10), 开发板："Arduino/Genuino Uno"

C:\Users\kjl26\AppData\Local\Temp\ccMDpPzx.ltrans2.ltrans.o: In function `aJsonStream::parseString(aJsonObject*) [clone .constprop.22]':

sketch/aJSON.cpp:357: undefined reference to `stringBufferCreate'

sketch/aJSON.cpp:419: undefined reference to `stringBufferFree'

sketch/aJSON.cpp:409: undefined reference to `stringBufferAdd'

sketch/aJSON.cpp:424: undefined reference to `stringBufferToString'

collect2.exe: error: ld returned 1 exit status

exit status 1
为开发板 Arduino/Genuino Uno 编译时出错。

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