编译时一直报错，以前没注意，现在想消除这些错误，报错的原因是什么
!ENTRY org.eclipse.cdt.core 1 0 2020-11-15 08:01:15.445
!MESSAGE Indexed 'msp430fr6877_test' (41 sources, 56 headers) in 4.81 sec: 3,685 declarations; 12,279 references; 0 unresolved inclusions; 0 syntax errors; 4 unresolved names (0.025%)
!ENTRY org.eclipse.cdt.core 1 0 2020-11-15 08:03:47.756
!MESSAGE Indexed 'eusci_a_uart_ex1_loopbackAdvanced' (36 sources, 50 headers) in 2.28 sec: 3,213 declarations; 11,112 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%)
!ENTRY org.eclipse.cdt.core 1 0 2020-11-15 10:30:44.177
!MESSAGE Indexed 'eusci_a_uart_ex1_loopbackAdvanced' (36 sources, 50 headers) in 1.13 sec: 3,213 declarations; 11,112 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%)
