I am trying to start a new development project using a PIC24 and FreeRTOS in MPLAB-X. Having fallen foul of the include path issue in MPLAB-X, I thought this was going to be easier. But, no such luck.

The PIC24 demo imports fine into MPLAB-X and compiles without errors. However, I want to place my project in my usual project directory, so attempted to transfer the project over. MPLAB-X is less then helpful in this, it seems.

So, started from a clean project and added the files from inside MPLAB-X, duplicated all the compiler and linker setting. Compiles without errors, but clearly something is missing. At the link step, I get the following list of errors:

build/default/production/_ext/1405245060/tasks.o(.text+0xc4): In function `.L7':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x152): In function `.LSM42':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x188): In function `.LSM53':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x228): In function `.LSM78':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x24c): In function `.L28':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x282): In function `.LSM89':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x290): In function `.LSM91':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x298): In function `.LSM92':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x318): In function `.LSM115':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x33a): In function `.L42':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x388): In function `.LSM128':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x3ac): In function `.L47':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x3b8): In function `.LSM130':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x43c): In function `.LSM158':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x440): In function `.LSM159':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x45c): In function `.L55':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x550): In function `.L70':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x55e): In function `.L70':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x582): In function `.L72':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x5f8): In function `.LSM212':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/tasks.o(.text+0x5fe): In function `.LSM213':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x60e): In function `.LSM215':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x630): In function `.LSM221':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x63c): In function `.LSM223':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/tasks.o(.text+0x660): In function `.L86':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x66c): In function `.LSM225':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/tasks.o(.text+0x722): In function `.LSM256':
: undefined reference to `_vApplicationIdleHook'
build/default/production/_ext/1405245060/tasks.o(.text+0x754): In function `.LSM264':
: undefined reference to `_vListInitialiseItem'
build/default/production/_ext/1405245060/tasks.o(.text+0x75a): In function `.LSM265':
: undefined reference to `_vListInitialiseItem'
build/default/production/_ext/1405245060/tasks.o(.text+0x786): In function `.LSM272':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/tasks.o(.text+0x792): In function `.LSM274':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/tasks.o(.text+0x796): In function `.LSM275':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/tasks.o(.text+0x79a): In function `.LSM276':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/tasks.o(.text+0x79e): In function `.LSM277':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/tasks.o(.text+0x7ca): In function `.LSM286':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/tasks.o(.text+0x7d4): In function `.LSM287':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/croutine.o(.text+0x46): In function `.LSM12':
: undefined reference to `_vListInitialiseItem'
build/default/production/_ext/1405245060/croutine.o(.text+0x4c): In function `.LSM13':
: undefined reference to `_vListInitialiseItem'
build/default/production/_ext/1405245060/croutine.o(.text+0x84): In function `.L5':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/croutine.o(.text+0xa6): In function `.LSM24':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0xbc): In function `.LSM27':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/croutine.o(.text+0xc6): In function `.LSM28':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/croutine.o(.text+0xd6): In function `.LSM30':
: undefined reference to `_vListInsert'
build/default/production/_ext/1405245060/croutine.o(.text+0xf2): In function `.LSM36':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0xfe): In function `.LSM38':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0x120): In function `.L13':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/croutine.o(.text+0x176): In function `.LSM55':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0x184): In function `.LSM57':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0x1b0): In function `.L21':
: undefined reference to `_vListInsertEnd'
build/default/production/_ext/1405245060/croutine.o(.text+0x24e): In function `.LSM79':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/croutine.o(.text+0x25a): In function `.LSM81':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/croutine.o(.text+0x25e): In function `.LSM82':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/croutine.o(.text+0x262): In function `.LSM83':
: undefined reference to `_vListInitialise'
build/default/production/_ext/1405245060/croutine.o(.text+0x280): In function `.LSM89':
: undefined reference to `_uxListRemove'
build/default/production/_ext/1405245060/croutine.o(.text+0x28a): In function `.LSM90':
: undefined reference to `_vListInsertEnd'

What am I missing? I'm stumped despite a good amount of effort to try to solve this.

Looks like you are missing FreeRTOS/Source/list.c in your project.

That did it. Many thanks for your help.