Qt deprecation model halting compiltion

[v71]

i have included json.hpp as a single file in a qt project using the msvc17 compiler in release mode
i get several of these errosr:
attribute 'deprecated'(since 3.0.0 ) cannot be used in this context
I don't know if commenting out the offending lines might cause a mjor disruption in the function of the library.

[nlohmann]

In order to asses your issue, we need the following information:

• What is the issue you have?

• Please describe the steps to reproduce the issue. Can you provide a small but working code example?

• What is the expected behavior?

• And what is the actual behavior instead?

• Which compiler and operating system are you using? Is it a supported compiler?

• Did you use a released version of the library or the version from the develop branch?

• If you experience a compilation error: can you compile and run the unit tests?

[v71]

compiler error

i have included "json.hpp" in a qt creator project with msvc2017 32 bit release option enabled, windows 10

the expected behaviour is to compile without errors
i get several errors referred as :

attribute 'deprecated'(since 3.0.0 ) cannot be used in this context

i have used the latest ( non develop branch) version

no i can't

Do not know how to be more explicit

[nlohmann]

What is the exact compiler error message?

[v71]

the exact compiler message is :

C:\Users\Vincenzo Panella\Desktop\qtprojects\levgen4_8\json.hpp:20486: error: C2416: l'attributo 'deprecated("Since 3.0.0")' non può essere applicato in questo contesto

which translates:

C:\Users\Vincenzo Panella\Desktop\qtprojects\levgen4_8\json.hpp:20486: error: C2416: attribute 'deprecated("Since 3.0.0")' cannot be applied in this context

[OvermindDL1]

@v71 It's not a json bug, it's a MSVC bug, known and fixed in the version after:
https://developercommunity.visualstudio.com/content/problem/138957/wrong-compilation-error-for-deprecated-nested-frie.html

Either downgrade or upgrade to whatever version of MSVC has been released in 2019.