报错代码

Could not find a package configuration file provided by "demo msgs" with
any of the following names:
demo msgsConfig.cmake
demo msgs-config.cmake
Add the installation prefix of "demo msgs" tO CMAKE PREFIX PATH or set
"demo_msgs DIR" to a directory containing one of the above files. If
"demo _msgs" provides a separate development package or SDk, be sure it has
been installed.

原因

导入的包有误：1.被导入的第三方包有问题；2.导入不完整

解决

重新编译第三方包，或者安装依赖