Error: recipe for target 'startup/startup_stm32f407xx.o' failed while building in sw4stm32 Posted by maria99 on 2020-08-02 19:37 I am getting the error while building the stm32 project in sw4stm32 ide: recipe for target ‘startup/startup_stm32f407xx.o’ failed ac6 toolchain is correctly installed. What can I do to solve this?