我们没有真正的定义,编译器无法编译,自然就会出现Undefined reference to报错了。 我们有两种思路去解决: 将.cpp文件也导入main.cpp中(或者将对应的方法放到.h文件里也是一样的)。这样会让编译器明确模板类的定义。 或者显式申明用到的类型,例如直接写出(但是这样,好像就丧失了泛型的意义所在?) Bag<int>::Bag() { _h
# This fixes an ESP-IDF 4.4.4/5.0.1 linker issue on incremental builds # "undefined reference to '_bt_bss_start'" for Bluetooth component library function 'esp_bt_mem_release' # References: # https://github.com/espressif/esp-idf/issues/10427 # https://docs.espressif.com/projects/esp-...
/usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: utilities.cc:(.text+0xcd): undefined reference to `_ULx86_64_init_local' /usr/lib/gcc/x86_64-pc-linux-gnu/9.3.0/../../../../x86_64-pc-linux-gnu/bin/ld: utilities.cc:(.text+0xf9)...
内容入标题 在windows环境下配置出现了一系列的undefined reference to `MD5_XX’的错误,但是发现自己openssl-1.0.2g文件夹中的out文件夹,out32dll文件夹,outinc文件夹的内容都没有问题 最后,在“工具”—>"编译器选项"中添加-lcrypto语句完成编译,如下图所示... 查看原文 windows,php5升级php7 openssl报错...
// put your main code here, to run repeatedly:read_sensor_values();//判断小车状态calculate_();//计算motor_control();//电机控制}///void stop_x(){digitalWrite(negR,LOW);digitalWrite(posR,LOW);digitalWrite(negL,LOW);digitalWrite(posL,LOW);read_sensor_values();//继续读取传感器状态}/...
编译不通过是因为代码有几个语法错误呢：1、while 后面不要用分号。2、return 后面的分号要用英文的分号。3、第2个while的第一个括弧是多余的。
INFO: 1> Linking CCubeApp ERROR: 1> /opt/intel/compilers_and_libraries_2019.0.117/linux/compiler/lib/intel64_lin/libirng.so: undefined reference to `__intel_skx_avx512_memcpy' ERROR: 1> collect2: error: ld returned 1 exit status I tried to define: export LD_PRE...
2. main.c:(.text+0x7): undefined reference to `test' 3. collect2: ld returned 1 exit status 1. 2. 3. 其根本原因也是找不到test()函数的实现文件,由于该test()函数的实现在test.a这个静态库中的,故在链接的时候需要在其后加入test.a这个库,链接命令修改为如下形式即可。
I noticed that on newer esp-idf versions, the reference to 'app_main' only works when the main folder of the project is named "main". Had it already twice, I think both times with an esp32S3. Lost a lot of time but now I have already changed it in all my projects, even some...
Re: "undefined reference to" error PostbySprite»Fri Feb 01, 2019 7:07 am my_lib is not 'seen' by the make system. Either put test_func.* in the main/ folder, or make my_lib into a proper component that's either placed under your my_project/components/ folder, or use EXTRA_CO...