SDK编译时报这个错误怎么解决？
时间：10-02
整理：3721RD
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Building target: uart_rs232.elf
Invoking: MicroBlaze gcc linker
mb-gcc -Wl,-T -Wl,../src/lscript.ld -L../../hello_world_bsp_0/microblaze_0/lib -mxl-barrel-shift -mxl-pattern-compare -mcpu=v8.00.b -mno-xl-soft-mul -o"uart_rs232.elf" ./src/helloworld.o ./src/platform.o
/cygdrive/c/Xilinx/12.4/ISE_DS/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze-xilinx-elf/4.1.2/../../../../microblaze-xilinx-elf/bin/ld: cannot open output file uart_rs232.elf: Permission denied
collect2: ld returned 1 exit status
make: *** [uart_rs232.elf] Error 1
Invoking: MicroBlaze gcc linker
mb-gcc -Wl,-T -Wl,../src/lscript.ld -L../../hello_world_bsp_0/microblaze_0/lib -mxl-barrel-shift -mxl-pattern-compare -mcpu=v8.00.b -mno-xl-soft-mul -o"uart_rs232.elf" ./src/helloworld.o ./src/platform.o
/cygdrive/c/Xilinx/12.4/ISE_DS/EDK/gnu/microblaze/nt/bin/../lib/gcc/microblaze-xilinx-elf/4.1.2/../../../../microblaze-xilinx-elf/bin/ld: cannot open output file uart_rs232.elf: Permission denied
collect2: ld returned 1 exit status
make: *** [uart_rs232.elf] Error 1