C ++ basic error:

C ++ Common Errors: 1. c2146 errors are usually caused by the absence of the type specifier before the variable definition, which may be due to spelling errors or missing header file references.
2. Error 1 fatal error c1010: unexpected end of file while looking for precompiled header. Did you forget to add' # include "stdafx. H" 'to your source? C: \ Documents ents and Settings \ Aldous. Liu \ Desktop \ myservice1 \ myservice1 \ firstservice. cpp 170 firstservice
*-> C/C ++-> precompiled headers-> Create/use precompiled headers-> not using precompiled headers
3. error 1 error c2440: 'initializing': cannot convert from 'const char [9] 'to 'lpwstr' c: \ Documents ents and Settings \ Aldous. liu \ Desktop \ ntservice2 \ ntservice2 \ ntservice2.cpp 13 ntservice2
*-> General-> use multi-Byte Character Set
4. Error 1 error c2065: 'servicemain': Undeclared identifier c: \ Documents and Settings \ Aldous. Liu \ Desktop \ ntservice2 \ ntservice2 \ ntservice2.cpp 13 ntservice2
Move the definition of methods and variables to the beginning before using this method and variables.