# \[4.7 Final\] PhysX error isFinite

**URL:** <https://forums.unrealengine.com/t/4-7-final-physx-error-isfinite/308114>\
**Category:** World Creation\
**Tags:** error, physx, UE4-7, unreal-engine, bug-report, question\
**Created:** [February 25, 2015, 8:24pm UTC](https://forums.unrealengine.com/t/4-7-final-physx-error-isfinite/308114 "2015-02-25T20:24:40Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Rama](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/rama/32/882413_2.png) [@Rama](https://forums.unrealengine.com/u/Rama)\
**Post date:** [March 5, 2015, 6:09pm UTC](https://forums.unrealengine.com/t/4-7-final-physx-error-isfinite/308114/7 "2015-03-05T18:09:15Z")

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Hi there!

That’s not actually a bug in my plugin itself, I am including the PhysX ThirdParty code as I explain how to do here:

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official...

The method described above has worked in many different Engine versions and works right now in PC and Linux builds (tested as working in 4.7)

#The Compile Errors, PhysX Unix

```
4.7\Engine\Source\ThirdParty\PhysX\PhysX-3.3\include\foundation\unix\PxUnixIntrinsics.h(92,9) : error: use of undeclared identifier 'isfinite'; did you mean 'isFinite'?

```

The compile errors are not in my plugin, but in the PhysX Unix code, so what I need to know is if there is some better way to include PhysX in UE4 projects so that this Android compile error does not occur.

This is a question that I think UE4 developers would be best at answering, and the method I use is at my wiki link:

**Integrating PhysX Code into Your Project**

> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)**
>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official...

#Solution

Eduard what do you mean when you say this:

“The fix is right now: Do as the error says: Replace all “isfinite” references with “isFinite”.”

Are you saying you are actually doing this somewhere and then your project compiles?

**I do not use isFinite() or isfinite() anywhere in my plugin**, so it is not related to the Victory BP Library code itself.

#Would Love To Hear From Epic

I would love to hear from Epic how to include PhysX in projects and not get this Android compile error!

#Why Only Android?  
These PhysX errors dont show up in Linux or PC builds, and I have no report of it not working for Mac, so why is it happening for Android?

#❤

Rama

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