Compilation errors in SysCompilerOutput

1.When i try to compile object(table,class) im getting the below error.

Error executing code: SysCompilerOutput (object) has no valid runable code in method ‘construct’. Stack trace (C)\Classes\SysCompilerOutput\construct

(C)\Classes\ClassFactory\createCompilerOutput - line 35

2.If i go to addins to compile forward any class debugger opens,showing error in syscontextmenu class

with this information we don’t know what are the classes you have changed and which of them causing this issue.
So you will have to resolve the compile errors in classes.