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No member named 'printf' in 'TextLCD_I2C_N'

Hi all, I am in the need to change display type (from HCMS2975 to 16x2 I2C LCD) in a project and I am facing problems with TextLCD library...

Apparently printf is not properly inherited from MbedOS:  No member named 'printf' in 'TextLCD_I2C_N'

I tried to update Mbed-os, but it cranks forever...

Any suggestion? 

BTW, I still have fake errors "Use of undeclared identifier 'strncat'".  

Thank you,

Walter