guide me through the errors

Question

Can any one guide me thorugh this error/, I am new to this language I just know only the basics.

to debug this module, change its project build configuration to debug mode. and
 
Error 1 Program 'H:\CRC_Data\CRC Office\01 R&D Projects\ELF\01_MCRL Development\04_Preforming  Moulding IPT - RD\13_Current Preforming\LPTs\LPT2DXF\Source\Lpt2Dxf\obj\x86\Debug\Lpt2Dxf.exe' does not contain a static 'Main' method suitable for an entry point Lpt2Dxf