CMake Error at BadCONFIG.cmake:1 \(add_custom_target\): Error evaluating generator expression: \$<CONFIG> \$<CONFIG> expression requires exactly one parameter. Call Stack \(most recent call first\): CMakeLists.txt:3 \(include\) + CMake Error at BadCONFIG.cmake:1 \(add_custom_target\): Error evaluating generator expression: \$<CONFIG:.> Expression syntax not recognized. Call Stack \(most recent call first\): CMakeLists.txt:3 \(include\) + CMake Error at BadCONFIG.cmake:1 \(add_custom_target\): Error evaluating generator expression: \$<CONFIG:Foo,Bar> \$<CONFIG> expression requires exactly one parameter. Call Stack \(most recent call first\): CMakeLists.txt:3 \(include\) + CMake Error at BadCONFIG.cmake:1 \(add_custom_target\): Error evaluating generator expression: \$<CONFIG:Foo-Bar> Expression syntax not recognized. Call Stack \(most recent call first\): CMakeLists.txt:3 \(include\) + CMake Error at BadCONFIG.cmake:1 \(add_custom_target\): Error evaluating generator expression: \$<CONFIG:Foo-Nested> Expression syntax not recognized. Call Stack \(most recent call first\): CMakeLists.txt:3 \(include\)$