identifier"I2C handler TypeDef" is undefined.

I am merging two projects .One project is wrote in stm32f401RE and another one is stm32f429i-discovery board.

I have already included all path and build the project.It shows error like identifier is undefined.

only one file path is not included.But i gave that file path is in C/C++ tab.

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Guru

Maker sure the module is enabled in stm32f4xx_hal_conf.h

And the the source files for the HAL I2C libraries are listed in the project trees.

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