How precisely Makefile-default gets called at this point is somewhat mysterious to me, since I am not a Make user, but what is clear from viewing that file is that there is no definition for the symbol MP_CC there, even though it is used there and there are definitions for MP_PROCESSOR_OPTION and MP_LINKER_FILE. The top level makefile in the project directory is just Makefile, but it then includes Makefile-impl.mk and Makefile-variables.mk, which do not contain a definition for the C compiler.

However, the crux of the matter seems to be the question of whether there is a definition of the C compiler by the time Makefile-default is invoked. I tried the 'Clean and Build' solution before I even posted, and it is my fault that I did not mention this. Apparently the reply to that word is that there is no generic answer, and that each case is different.

I realize that this problem has been treated before, repeatedly, but that was the reason for my use of the word 'generic' in the post title. Is this the continuing problem with make and spaces and special characters in Windows (64-bit 7 in this case) folder names? Or something else? I note that the parentheses are backslashed in the file path, but the spaces are not. Suggesting that make can't find the C file, I believe. Stop.īUILD FAILED (exit value 2, total time: 200ms) Make: Leaving directory `C:/Users/lrk/MPLABXProjects/first_xc16_project.X' Make -f nbproject/Makefile-default.mk dist/default/production/first_xc16_project.X.production.hex Make: Entering directory `C:/Users/lrk/MPLABXProjects/first_xc16_project.X' Make -f nbproject/Makefile-default.mk SUBPROJECTS=. Like many others, in lots of other situations described in this forum, my build fails, with a 'No rule to make target' error, in this case one of the C source files. I am a completely new user to MPLABX(v1.95), and after installing the software, and the xc16(v1.20) compiler suite, I attempted to build the template project called out in the XC16 compiler users guide. Generic solution to 'No rule to make target' errors?

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