Help with SFML Game Development book

[twiggystardust]

Hello, I have recently started building the project in the book and I have made it to chapter 3. But I have a problem, I was presented with this error

sfmlapplication\aircraft.cpp(22): error C2027: use of undefined type 'ResourceHolder<Resource,Identifier>'
1>          with
1>          [
1>              Resource=sf::Texture,
1>              Identifier=Textures::ID
1>          ]

So I go take a look at where the error is, the code looks like:

20  Aircraft::Aircraft(Type type, const TextureHolder& textures)
21  : mType(type)
22  , mSprite(textures.get(toTextureID(type)))
23  {
24        sf::FloatRect bounds = mSprite.getLocalBounds();
25        mSprite.setOrigin(bounds.width / 2.f, bounds.height /2.f);
26  }

It seems that there is a problem with

mSprite(textures.get(toTextureID(type)))

and when I hover over textures with the mouse it pops up with "Error: incomplete type is not allowed" I have no idea why this would be, because as far as I can tell, other than the statistic stuff, my code is Identical to the code that was e-mailed to me. Also I did not include the string helper files, are those even needed? They aren't mentioned in the book so I figured they were for the statistics. Can anyone please help? I can't find any problems.

[Nexus]

It looks like an #include <Book/ResourceHolder.hpp> directive is missing.

In any case, can you try the newer code version from GitHub? Please follow the ReadMe file step by step carefully, in order to set everything up correctly.

[twiggystardust]

Hello Nexus and thank you for you quick reply. I checked the code and you are correct. I did not include ResourceHolder.h. I had accidentally included the ResourceIdentifier.h and while I was comparing code, I must not have looked at that part close enough. Thank you very much again.