Errors may be compile time and run time. compile time 
errors are the logical errors and syntax errors whic are 
indicated by the compiler after the compilation errors. The 
errors which occur after the copilation are runtime errors

3 types of error occurs in c language ie syntax error, 
segment error, and linking error.
syntax error and segment error occurs during compailation 
and linking error occurs during runtime

3 errors syntax and segment during compilation and logical
during runtime

     we canot say that c language has how many errors
          
     it is based on paticular program

errors depends on that programs and human mistakes.

Hi kalpana please read and understand the question properly 
before answering the question,please dont be too smart.

there are many types of errors in c

How can we say how many errors in C language,but Usually 
Every Language has some errors like Syntaical and 
Symantical Errors
Syntatical Errors are the error in the syntax like int x.
but here instead of  semi colon we palce dot that is the 
syntatical error.
Symantical Errors: The errors are in the symantics like If 
is the keyword instead of that we write ef
then the meaning is changed that is symantical errors.
The above two errors are Compile time errors and we have 
some runtime errors.They are due to some infinite loops 
garbage collection or memory shortage or wrong Inputs

many types error in c language but commonly three types of 
error first one syntax error means if any one create a 
program in c language to write some codings at that time 
the person declared a variable properly for ex:
he create a coding intx; no space in variable name and data 
type at that he compiling the program system ask one error 
in your program the error is syntax error in particular 
line you will not declared properly.
second one logical error
logical error means some input function are output function 
is typed wrong at that this type of error occur in your 
program for ex: you type input function scan(""); 
this type of error is run time error

I think that the question is HOW many errors and not how many types of errors.
According to me the answer is 26
Because maximum of 25 errors are counted by the C compiler in any program and the 26th error is "TOO MANY ERRORS".

So the answer in 26...

I think there are four error in c language  symtex 
error,logical error(sementex error) run time error, linking 
error