# Sample Apps unbuildable in MBPL SDK

**URL:** <https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259>\
**Category:** MC/EM Series\
**Created:** [July 15, 2021, 10:05pm UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259 "2021-07-15T22:05:21Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jbushman](https://avatars.discourse-cdn.com/v4/letter/j/dc4da7/32.png) [@jbushman](https://forum.sierrawireless.com/u/jbushman)\
**Post date:** [July 15, 2021, 10:05pm UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259/1 "2021-07-15T22:05:21Z")

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I’ve downloaded both R20 and R21 versions of the MBPL\_SDK package. There’s only a few source files in the SampleApps directory, and nothing seems buildable because required source and header files are missing. The readme files imply that things should be built in the pkgs directory and that the applications should be buildable in the SampleApps directories.

Is there a reason the necessary source files have been removed?

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [July 17, 2021, 11:28am UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259/2 "2021-07-17T11:28:12Z")

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I check \MBPL\_SDK\_R20\_ENG4-lite.bin\SampleApps\lite-qmi-connection-manager/makefile

```auto

_OBJ = displaysettings.o connectmgr.o ping.o netlink_util.o qmux_util.o proc_util.o
OBJ := $(patsubst %, $(ODIR)%, $(_OBJ))
LIBS = -l m -L ../../lite-qmux/lib/$(CPU)/ -l lite-qmux -L ../../lite-mbim/lib/$(CPU)/ -l lite-mbim -L ../../lite-qmi/lib/$(CPU)/ \
	-L ../../lite-common/lib/$(CPU) -l lite-qmi -lpthread -lcommon
CFLAGS += -I ../../lite-qmi/inc -I ../../lite-qmux/inc -I ../../lite-mbim/inc -I ./inc -I ../common/inc -I ../../pkgs/common

```

Which files are missing on your side?

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<div class="post-metadata">

**Author:** ![jbushman](https://avatars.discourse-cdn.com/v4/letter/j/dc4da7/32.png) [@jbushman](https://forum.sierrawireless.com/u/jbushman)\
**Post date:** [July 19, 2021, 7:05pm UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259/3 "2021-07-19T19:05:54Z")

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The SDK only has connectmgr.c. It doesn’t have displaysettings.c, ping.c, netlink\_util.c, qmux\_util.c or proc\_util.c. Nor does it have these header files included in connectmgr.c: displaysettings.h, lite-qmi-demo.h, ping.h, netlink\_util.h, dev\_util.h, qmux\_util.h, proc\_util.h and str\_util.h.

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<div class="post-metadata">

**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [July 20, 2021, 2:10am UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259/4 "2021-07-20T02:10:38Z")

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it will be fixed in future release.

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<div class="post-metadata">

**Author:** ![jbushman](https://avatars.discourse-cdn.com/v4/letter/j/dc4da7/32.png) [@jbushman](https://forum.sierrawireless.com/u/jbushman)\
**Post date:** [July 20, 2021, 3:56pm UTC](https://forum.sierrawireless.com/t/sample-apps-unbuildable-in-mbpl-sdk/24259/5 "2021-07-20T15:56:03Z")

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Thank you. That will be great.