Hi,
Could you help us providing which S32DS/RTD/IPCF version are you using? We see that S32DS==3.4 and RTD==3.0.2 (possibly HF01) but we are seeing anything regarding IPCF.
This seems related to not generating the code with Config Tools. Below the errors without generating the code from Config Tools:
"C:/nxp/S32DS.3.4/S32DS/software/PlatformSDK_S32XX_2022_03/SW32_RTD_4_4_3_0_2_D2203/Base_TS_T40D11M30I2R0/include/OsIf_Internal.h:46:10: fatal error: OsIf_Cfg.h: No such file or directory
Invoking: Standard S32DS C Compiler
46 | #include "OsIf_Cfg.h"
| ^~~~~~~~~~~~
compilation terminated.
Invoking: Standard S32DS C Compiler
../src/sample.c:24:10: fatal error: ipcf_Ip_Cfg.h: No such file or directory
24 | #include "ipcf_Ip_Cfg.h"
| ^~~~~~~~~~~~~~~"
Once we the code is generated, the project can successfully compile:
"Invoking: Standard S32DS Print Size
arm-none-eabi-size --format=berkeley IPCF_Example_multi_instance_S32G274_M7_0.elf
text data bss dec hex filename
297512 0 4097 301609 49a29 IPCF_Example_multi_instance_S32G274_M7_0.elf
Finished building: IPCF_Example_multi_instance_S32G274_M7_0.siz
13:14:11 Build Finished. 0 errors, 0 warnings. (took 10s.84ms)"
To generate the code, you need to click on your project, then right click on it and select:
"S32 Configuration Tools > Open Pins"
Then, an "Update Code" is presented below the tool bar, with a green icon. Click on it to generate the code for the application. Image below shows the location of the button on our setup:

Once generated, you can try an compile the project, it should let you now. If not, we recommend deleting the project then importing it again, to prevent any misconfigurations that the project could have taken.
Please, let us know.