Problem when building flexric

[Rodrigo947]

Hello,

I’m having an issue when trying to build flexric. When I run the command

$ cmake .. -DE2AP_VERSION=E2AP_V1 -DKPM_VERSION=KPM_V3_00 && make -j8

the following error occurs:

After modifying the code on line 40 of the file (examples/xApp/c/monitor/RRC_MESSAGES/CMakeLists.txt)

add_library(asn1_nr_rrc_hdrs INTERFACE ${nr_rrc_headers}) to
add_library(asn1_nr_rrc_hdrs INTERFACE)

the build stops when compiling the ASN:

After modifying the code on line 35 of the file (examples/xApp/c/monitor/RRC_MESSAGES/CMakeLists.txt)

COMMAND ASN1C_PREFIX=NR_ ${ASN1C_EXEC} -pdu=all -fcompound-names -gen-UPER -no-gen-BER -no-gen-JER -no-gen-OER -gen-APER -no-gen-example -findirect-choice -D ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/${NR_RRC_GRAMMAR}

to

COMMAND ASN1C_PREFIX=NR_ ${ASN1C_EXEC} -pdu=all -fcompound-names -findirect-choice ${CMAKE_CURRENT_SOURCE_DIR}/${NR_RRC_GRAMMAR}

the build stops when compiling the ASN to:

Do you know what kind of problem this could be?

[Youssef-Fathy-1]

Hi @Rodrigo947 ,
I faced the same issue and found a workaround that allowed me to build FlexRIC successfully.
Here are the exact steps and commands I used:

1. Navigate to the following path :
   cd flexric/examples/xApp/c

2. Open the CMake file (File: CMakeLists.txt) and comment out line 3:

# add_subdirectory(monitor)

3. Remove the old build directory:
   cd ../../../.. # go back to flexric directory
rm -rf build

4. Recreate the build directory and rebuild FlexRIC:
   mkdir build && cd build && cmake .. -DE2AP_VERSION=E2AP_V1 -DKPM_VERSION=KPM_V3_00 && make -j8

After applying these steps, the build completed successfully on my side.
Hope this helps!