Error Reported During CMAQ Compilation
Symptom
The error message "Error:Syntax in COMMON statement at (1) STATE3.EXT:174:27:" is displayed during CMAQ compilation.
Key Process and Cause Analysis
The data format is incorrect.
Conclusion and Solution
Modify the STATE3.EXT file.
- Open the STATE3.EXT file.
vim ioapi/STATE3.EXT
- Press i to enter the insert mode. Delete the ampersands (&) at the end of some lines in the STATE3.EXT file, as highlighted by the red box in the following figure.

- Press Esc, type :wq!, and press Enter to save the settings and exit.