Building WRF --- 'undefined references to **** problems building executables'

[ruiyingz]

Hi all,

Good day!

I am new user of WRF, and now compiling WRF v4.5.1 on Ubuntu virtual machine (Linux virtual-machine 6.2.0-26-generic #26~22.04.1-Ubuntu) using GNU compiler.
According to the official tutorials, I have successfully done 'Building libraries' and 'Library Compatibility Tests'.

But *.exe could not be generated in 'main' folder when compiling WRF. And I found lots of 'undefined reference **' information in the log files.
I tried two different cases:
The file log1.txt is generated by running './configure' -> '34 default' -> './compile em_real >& log1.txt'
The file log2.txt is generated by running './configure' -> '32 default' -> './compile em_real >& log2.txt'

Both log*.txt files are attached. Could you please have a look at and help me solve it? Thanks in advance!

Best,
rui

 

[kwerner]

Hi Rui,
Can you issue a "clean -a" and then reconfigure, then recompile with the following command

./compile em_real -j 1 >& log.txt

I still expect it to fail, but by setting "-j 1" it will only use a single processor to compile (the default setting uses 2 processors), which means the first "Error" message is the culprit for the failure. When it fails again, please attach the configure.wrf file, and the new log.txt file. Thanks!

 

[ruiyingz]

Hi Kwerner,
Many thanks for your reply on installing WPS. Based on the suggestions, although I was initially unable to solve the issue, I managed to get it working by downgrading my Ubuntu version to Ubuntu 20.4.

 

[kwerner]

Hi Rui,
I'm so glad to hear that you were able to solve the original compiling issue. Thanks for letting us know the update.