Error when trying to run Omnet++ simulation - omnet++

I am new to Omnet++ and I have downloaded some code from GitHub and I am just trying to run it on instant veins and I keep getting an errors with 'VeinsInetMobility.h'. The downloaded code has it's own 'veins_inet' folder, so when I replace 'VeinsInetMobility.h' from the downloaded code with the 'VeinsInetMobility.h' provided by instant veins, it still produces an error (see the 2 errors attached).
Anybody have any idea how to solve this problem? Thanks. Error Error
Link to code: https://github.com/chaotictoejam/VANETTutorials

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