# Error compiling MCIP **URL:** \ **Category:** MCIP\ **Created:** [December 16, 2019, 6:03pm UTC](https://forum.cmascenter.org/t/error-compiling-mcip/1188 "2019-12-16T18:03:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![lawless](https://avatars.discourse-cdn.com/v4/letter/l/e56c9b/32.png) [@lawless](https://forum.cmascenter.org/u/lawless)\ **Post date:** [December 16, 2019, 6:03pm UTC](https://forum.cmascenter.org/t/error-compiling-mcip/1188/1 "2019-12-16T18:03:18Z")
Hello, I went to recompile MCIP and now I keep running into this problem and I am at a complete loss of what to do. make[1]: Entering directory ‘/home/colethatcher/53\_CMAQ/PREP/mcip/src’ /home/linuxbrew/.linuxbrew/bin/gfortran -m64 -O3-I/home/colethatcher/netcdf-fortran-4.5.2-gcc/include -I/home/colethatcher/ioapi-3.2/Linux2\_x86\_64gfort\_openmpi\_4.0.1\_gcc\_9.1.0 -c const\_mod.f90 f951: Error: argument to ‘-O’ should be a non-negative integer, ‘g’, ‘s’ or ‘fast’ Makefile:163: recipe for target ‘const\_mod.o’ failed make[1]: \*\*\* [const\_mod.o] Error 1 make[1]: Leaving directory ‘/home/colethatcher/53\_CMAQ/PREP/mcip/src’ Makefile:154: recipe for target ‘all’ failed make: \*\*\* [all] Error Any advice would be great ---
**Author:** ![lawless](https://avatars.discourse-cdn.com/v4/letter/l/e56c9b/32.png) [@lawless](https://forum.cmascenter.org/u/lawless)\ **Post date:** [December 16, 2019, 6:38pm UTC](https://forum.cmascenter.org/t/error-compiling-mcip/1188/2 "2019-12-16T18:38:26Z")
NVM just fixed it. NETCDFF libs were not added although I was weirdly able to compile it before. ---
**Author:** ![tlspero](https://avatars.discourse-cdn.com/v4/letter/t/bb73d2/32.png) [@tlspero](https://forum.cmascenter.org/u/tlspero)\ **Post date:** [December 20, 2019, 5:59pm UTC](https://forum.cmascenter.org/t/error-compiling-mcip/1188/3 "2019-12-20T17:59:50Z")