【FAQ】设置完qsys以后编译工程提示Error (12006)
Q:设置完qsys以后编译工程提示：Error (12006): Node instance "u0" instantiates undefined entity "nios2_system". Ensure that required library paths are specified correctly, define the specified entity, or change the instantiation. If this entity represents Intel FPGA or third-party IP, generate the synthesis files for the IP.A: 您这是忘记了把.qsys文件添加到assignments ——> settings里面去：
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