Solidity error message on compilation (DeclarationError: Identifier not found or not unique. using Address for address;)

Question

I'm trying to compile a code for a crowdsale contract (Timed and with allowance) from openzeppelin library that is based on a deployed token. However during compilation on remix i get a syntax error as below

browser/TestCrowdsale.sol:330:11: DeclarationError: Identifier not found or not unique.

using Address for address;

^-----^

I tried with latest compiler 0.6.1 and with 0.5.0 still same result.

can someone advise whats the issue with the code

Also where should i pass the address of the deployed contract to the crowdsale contract?

Code: https://paste2.org/ULhxpLAv

Answer 1

Looking into it quickly I noticed you did not import the library Address and this is probably why your using Address as address doesn't work. Hope this helps.