# Troubleshoot ## Compile - The fetch speed is slow when compiling `nativesdk-glibc`. **Resolution**: Change the source with the following steps. > > > vim /layers/poky/meta/recipes-core/glibc/glibc_2.39.bb +35 > # Add the following line to file > > PREMIRRORS = "" > > # save and exit > bitbake -c cleanall nativesdk-glibc;bitbake -c do_fetch nativesdk-glibc > Copy to clipboard > > > After execution, rebuild according to the original operation process. Note For common issues regarding Docker, sync, build, and flash, see [Qualcomm Linux Build Guide: Troubleshoot](https://docs.qualcomm.com/doc/80-70023-254/topic/troubleshoot_sync_build_and_flash.html). Last Published: Dec 29, 2025 [Previous Topic Upgrade individual SDKs](https://docs.qualcomm.com/bundle/publicresource/80-70023-265/topics/upgrade_individual_sdk.md) [Next Topic Appendices](https://docs.qualcomm.com/bundle/publicresource/80-70023-265/topics/appendixes.md)