Error Building Imported Project: 'No rule to make target' - Error Building Imported Project: 'No rule to make target' Description If an application or library project is created with version 9.1 SP2 or earlier (using the GCC 3 toolchain), and you import it to the version 10.0 Nios II SBT for Eclipse using the GCC 4 toolchain, you might see the build error shown in . Build Error in GCC 4 make all Info: Building ../hw_bsp make --no-print-directory -C ../hw_bsp make[1]: *** No rule to make target '/cygdrive/c/tmp/verilog_niosII_stratixII_2s60_standard/software/hw_bsp/alt_sys_init.c', needed by 'all'. Stop. make: *** [../hw_bsp-recurs-make-lib] Error 2 This error can also happen if you import a GCC 3 project to the version 10.0 SBT for Eclipse using the GCC 3 toolchain, and later change the toolchain to MinGW Nios II GCC4 . This issue only affects platforms running the Windows operating system. Resolution To avoid this error, follow these steps: Edit the application project and library project makefiles and add the inserted code as shown in . Right-click the BSP project, point to Nios II and click Generate BSP . Clean and rebuild the application and library projects. Makefile Correction for GCC 4 Build Error #------------------------------------------------------------------------------ # The adjust-path macro # # If COMSPEC is defined, Make is launched from Windows through # Cygwin. This adjust-path macro will call \'cygpath -u\' on all # paths to ensure they are readable by Make. # # If COMSPEC is not defined, Make is launched from *nix, and no adjustment # is necessary #------------------------------------------------------------------------------ # Beginning of inserted code ifndef COMSPEC ifdef ComSpec COMSPEC = endif # ComSpec endif # !COMSPEC #end of inserted code ifdef COMSPEC adjust-path = adjust-path-mixed = else adjust-path = adjust-path-mixed = endif Alternatively, install the Altera Complete Design Suite version 11.0 or later. Custom Fields values: ['novalue'] Troubleshooting novalue True ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 10.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']