solved: ERROR: no matching function for call to 'LiquidCrystal_I2C::begin()'

Post a link (using the chain link icon on the toolbar to make it clickable) to where you downloaded the library from or if you installed it via Library Manager state the full name. You should be aware there are multiple libraries of the same name but with different code.

When you encounter an error you'll see a button on the right side of the orange bar "Copy error messages". Click that button. Paste the error in a message here USING CODE TAGS (</> button on the toolbar).