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ERROR: POP2 OCN Component requires OCN_PIO_ROOT==0

Hello,I am trying to run the B_2000 compset, using CESM 1.0.4 with a f45_g37 resolution. The software does not seem to be able to define the CICE_BLCKX, CICE_BLCKY CICE_MXBLCKS,  CICE_DECOMPTYPE and POP_BLCKX, POP_BLCKY, POP_MXBLCKS, POP_DECOMPTYPE on its own and I had therefore to set them myself. For the CICE component I set:./xmlchange -file env_mach_pes.xml-id CICE_AUTO_DECOMP-val false./xmlchange -file env_build.xml-id CICE_BLCKX      -val 12./xmlchange -file env_build.xml-id CICE_BLCKY      -val 46        ./xmlchange -file env_build.xml-id CICE_MXBLCKS             -val 1./xmlchange -file env_build.xml-id CICE_DECOMPTYPE-val cartesianFor the POP component I set:./xmlchange -file env_mach_pes.xml-id POP_AUTO_DECOMP-val false./xmlchange -file env_build.xml-id POP_BLCKX-val 32./xmlchange -file env_build.xml-id POP_BLCKY-val 48./xmlchange -file env_build.xml-id POP_MXBLCKS-val 4./xmlchange -file env_build.xml-id POP_DECOMPTYPE        -val cartesian The CICE setup appears to build properly however when the POP component builds I get the following error:ERROR: POP2 OCN Component requires OCN_PIO_ROOT==0OCN_PIO_ROOT current setting in env_run.xml is -99 I understand that the error is related with the values I set for the POP configuration, but I have been unable to solve the problem.Does anyone know how could it possilbly be saved and if there is any way that the CICE and POP could be set automatically by the model with no need for my intervention? Thank you in advance for your help,Beth 
 
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