TezosToolkit is not a constructor

[NguyennThinh]

I got an error 'TezosToolkit is not a constructor' when i try 'const Tezos = new TezosToolkit('https://ghostnet.ecadinfra.com');'

[hui-an-yang]

Might need more info to help you like what's your setup like module in tsconfig.json and how do you import TezosToolkit into your file?
Is this a frontend or backend project?