[FR] 0>app.h(341,5): Error : 'INTERNAL_EXPERIMENTAL' is not defined, evaluates to 0 [-Werror,-Wundef]

[nguyenvanminhc9nvm]

i receiver this error when try build sdk from rider for project ue5, how can i fix it

0>app.h(320,5): Error : 'INTERNAL_EXPERIMENTAL' is not defined, evaluates to 0 [-Werror,-Wundef] 0>#if INTERNAL_EXPERIMENTAL 0> ^ 0>app.h(341,5): Error : 'INTERNAL_EXPERIMENTAL' is not defined, evaluates to 0 [-Werror,-Wundef] 0>#if INTERNAL_EXPERIMENTAL 0> ^ 0>app.h(353,5): Error : 'INTERNAL_EXPERIMENTAL' is not defined, evaluates to 0 [-Werror,-Wundef] 0>#if INTERNAL_EXPERIMENTAL 0> ^ 0>app.h(382,5): Error : 'INTERNAL_EXPERIMENTAL' is not defined, evaluates to 0 [-Werror,-Wundef] 0>#if INTERNAL_EXPERIMENTAL 0> ^

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[jonsimantov]

As a workaround, if you can add a preprocessor definition INTERNAL_EXPERIMENTAL=0, that should fix this.

[paulpv]

• https://github.com/firebase/firebase-cpp-sdk/blob/f198c6f87e3d762cc3bfdac80a6b38541e5e8641/app/src/include/firebase/app.h#L320
• https://github.com/firebase/firebase-cpp-sdk/blob/f198c6f87e3d762cc3bfdac80a6b38541e5e8641/app/src/include/firebase/app.h#L341
• https://github.com/firebase/firebase-cpp-sdk/blob/f198c6f87e3d762cc3bfdac80a6b38541e5e8641/app/src/include/firebase/app.h#L353
• https://github.com/firebase/firebase-cpp-sdk/blob/f198c6f87e3d762cc3bfdac80a6b38541e5e8641/app/src/include/firebase/app.h#L382

Those are all lines with

#if INTERNAL_EXPERIMENTAL

All prior uses of INTERNAL_EXPERIMENTAL in that file were:

#ifdef INTERNAL_EXPERIMENTAL

Either:

1. a default value needs to be defined and all of the #ifdef replaced with #if -or-
2. all of the #if INTERNAL_EXPERIMENTAL need to be replaced with #if defined(INTERNAL_EXPERIMENTAL) && INTERNAL_EXPERIMENTAL