cmake config_error ai_generated true

CMake Error: IMPORTED_LOCATION not set for imported target "MyPackage::MyLib"

ID: cmake/imported-location-not-set

Also available as: JSON · Markdown · 中文

95%Fix Rate

90%Confidence

1Evidence

2023-09-20First Seen

Version Compatibility

Version	Status	Introduced	Deprecated	Notes
CMake 3.22	active	—	—	—
CMake 3.23	active	—	—	—
CMake 3.24	active	—	—	—

Root Cause

An imported target created via add_library(MyPackage::MyLib UNKNOWN IMPORTED) or similar lacks the IMPORTED_LOCATION property, which is required for linking.

generic

中文

通过 add_library(MyPackage::MyLib UNKNOWN IMPORTED) 或类似方式创建的导入目标缺少 IMPORTED_LOCATION 属性，而该属性是链接所必需的。

Official Documentation

https://cmake.org/cmake/help/latest/prop_tgt/IMPORTED_LOCATION.html

Workarounds

95% success add_library(MyPackage::MyLib UNKNOWN IMPORTED) set_target_properties(MyPackage::MyLib PROPERTIES IMPORTED_LOCATION "/usr/local/lib/libmylib.so" )
```
add_library(MyPackage::MyLib UNKNOWN IMPORTED)
set_target_properties(MyPackage::MyLib PROPERTIES
  IMPORTED_LOCATION "/usr/local/lib/libmylib.so"
)
```
90% success # In MyPackageConfig.cmake: add_library(MyPackage::MyLib UNKNOWN IMPORTED) set_target_properties(MyPackage::MyLib PROPERTIES IMPORTED_LOCATION "${CMAKE_CURRENT_LIST_DIR}/lib/libmylib.so" )
```
# In MyPackageConfig.cmake:
add_library(MyPackage::MyLib UNKNOWN IMPORTED)
set_target_properties(MyPackage::MyLib PROPERTIES
  IMPORTED_LOCATION "${CMAKE_CURRENT_LIST_DIR}/lib/libmylib.so"
)
```

中文步骤

add_library(MyPackage::MyLib UNKNOWN IMPORTED)
set_target_properties(MyPackage::MyLib PROPERTIES
  IMPORTED_LOCATION "/usr/local/lib/libmylib.so"
)

# In MyPackageConfig.cmake:
add_library(MyPackage::MyLib UNKNOWN IMPORTED)
set_target_properties(MyPackage::MyLib PROPERTIES
  IMPORTED_LOCATION "${CMAKE_CURRENT_LIST_DIR}/lib/libmylib.so"
)

Dead Ends

Common approaches that don't work:

100% fail
CMake requires a non-empty path; an empty string causes the same error or undefined behavior.
95% fail
The property name must match exactly; misspelling leads to the same error.