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Issue in Capacitive Touch

The MCU is RA2L1.I encountered a issue when I applied QE for Capacitive Touch( V3.1.0) to make tuning.
At the end, it said

TSCAP voltage error. Please check and review the design of the Target Board.
Failed to tuning.

Does anyone know why?

The TSCAP pin is tied to a capcitor. Is it incorrect?

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