# Random compiler errors on SYSTEM\_THREAD(ENABLED);

**URL:** <https://community.particle.io/t/random-compiler-errors-on-system-thread-enabled/18301>\
**Category:** Troubleshooting\
**Created:** [December 15, 2015, 6:43pm UTC](https://community.particle.io/t/random-compiler-errors-on-system-thread-enabled/18301 "2015-12-15T18:43:28Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Dave](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/dave/32/181_2.png) [@Dave](https://community.particle.io/u/Dave)\
**Post date:** [December 16, 2015, 5:40pm UTC](https://community.particle.io/t/random-compiler-errors-on-system-thread-enabled/18301/7 "2015-12-16T17:40:21Z")

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Hey all!

Thanks for reporting this, I’ve identified the issue, a recent API update changed a behavior when picking the “latest” firmware target for your device. If you explicitly select the version “0.4.7” it should work properly. The update went out earlier this week (Mon/Tues), Sorry we didn’t catch this sooner!

edit: I’ve applied a small patch that should address this for the Photon, but not yet for the P1/ Core. We should have a better fix in place later this week.

Thanks,  
David

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