STMPE811 undefined references to IOE

[Xxoyo.1]

Hello everyone, I am using stm32cubemx to generate my project. In the ProjectManager/code generation option, I checked "Generate peripheral initialization as a pair of '.c/.h' files per peripheral". 

The reason was to turn main.c into main.cpp, so i wont have to manually add extern 'C' for all the generated initialzations. 

However, when I compile, it says that STMPE811 has undefined references to IOE. How should I fix this problem?

Thanks in advance!

[Xxoyo.1]

Hello everyone, i have indirectly solved my problem by rebuilding the project from scratch.

Thanks all!