What are the compilation errors?

Compilation errors, also known as compile-time errors, are errors that occur during the compilation or translation of source code into machine code by a compiler. These errors prevent the successful compilation of the code, and the resulting executable program cannot be created until these errors are fixed.

Some common types of compilation errors include:

1. Syntax errors: These occur when the code violates the syntax rules of the programming language. For example, missing semicolons, incorrect variable names, or mismatched parentheses.

2. Type errors: These occur when the program tries to assign an incompatible data type to a variable or function parameter. For example, trying to assign a string value to an integer variable.

3. Semantic errors: These occur when the code is grammatically correct but doesn’t make sense logically. For example, dividing a number by zero.

4. Linker errors: These occur when the compiler cannot find a referenced function or object during the linking phase of compilation.

5. Preprocessor errors: These occur when there are issues with the preprocessor directives, which are instructions that are processed before the code is compiled. For example, including a header file that doesn’t exist.

Errors that occur when you violate the rules of writing syntax are known as Compile-Time errors.

Compilation error refers to a state when a compiler fails to compile a piece of computer program source code, either due to errors in the code, or, more unusually, due to errors in the compiler itself. A compilation error message often helps programmers debugging the source code.