编译出现这个问题怎么解决
Rebuild target 'Target 1' assembling STARTUP.A51... linking... BL51 BANKED LINKER/LOCATER V6.05 - SN: K1RMC-0K1QJC COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2007 ".\Objects\STARTUP.obj" TO ".\Objects\3" PRINT(".\Listings\3.m51") RAMSIZE(256) *** FATAL ERROR L210: I/O ERROR ON INPUT FILE: EXCEPTION 0021H: PATH OR FILE NOT FOUND FILE: .\Objects\STARTUP.obj Target not created. Build Time Elapsed: 00:00:01
