Most Common Errors Found in Programing & How to Avoid Them

There is nothing more frustrating than the sudden abnormal program termination that various PC problems cause on the runtime. No matter how good a developer is, errors are part of every software developmentprocess that a developer usually confronts. Regardless of the experience, programming errors seem to become an indispensable part that impacts the program’s functionality and performance. Common errors like failures, bugs, defects, or faults are more likely to occur when programming. However, the programming errors are not just limited to this, there are other scores of programming errors that occur during the software development process.

Common program errors that every developer should avoid

Programming errors have become a normal part of any programming development process that developers usually confront while programming. Although there are scores of complex errors that might happen, a programmer needs to keep track of the best ways to avoid such errors. Different types of programming errors include:

Syntax Errors

Similar to human language, computer languages also have a set of grammar rules. Syntax errors occur when there is a mistake in using the programming language. These errors include incorrect labels, punctuation mistakes, spelling errors, and others that cause the compiler to generate the error message. This error message pops up in a separate error window with the line number and the type of the error. This makes it easy to identify the error and correct the error in an error window.

How to avoid syntax errors?

Thoroughly understand the problem that the compiler tells with error messages. To avoid the syntax errors:

  1. Make sure that the punctuations are matched up correctly.
  2. Make sure that indentation is consistent.
  3. Check to see if there is any mismatched or missed quote. If there is any mismatching or missing quotes, correct the error and run the code.

Logic Errors

A logic error is an error in the working of the program due to errors in the program logic or structure. This type of error mostly occurs during software development while using incorrect logical operators. Logical errors produce unexpected or unintended output even after running the right code. This type of error occurs in both interpreted and compiled languages. Moreover, this type of error is also not very easy to find so it is important to check the calculations thoroughly.

How to avoid logic errors?

  1. Before developing any software or program, go through all the requirements in detail.
  2. Make use of more print statements to ensure the working of the programs.
  3. Make sure to resolve all the syntax errors.
  4. Identify the conditions based on the variables.

Compilation Errors

A compilation error occurs due to errors in the compiler or errors in the code. The compilation error mostly occurs when the compiler does not know to turn the error into the lower-level code. The compiler errors are mostly in the form of the improper casing, source file mismatch, or missing punctuation. Having a compile error in the software will never test it or launch it. This type of error is easy to find during compilation time and is very easy to address the issue.

How to avoid compilation errors?

  1. Make sure to declare all the variables before using them.
  2. Check that the variables are initialized correctly after declaring them.
  3. Make sure to use the defined variable in its own scope.

Interface Errors

This type of error mostly occurs when there is a difference between the intended program and the working of the intended program. During software development, this error mostly occurs when the input of the program does not match up with the standards. Different functioning of the software on the caller’s side leads to different interface errors. Varying types of interface errors include added functionality, inadequate functionality, misuse of an interface, violation of data constraints, etc.

How to avoid interface errors?

The best way to avoid interface errors is to have a clear understanding of the errors that can be passed back to the caller’s side. However, not passing this error to the caller will lead to causing run-time errors.

Runtime Errors

The runtime errors mostly occur when the program produces a wrong output. It occurs when the program is syntactically right but there is a problem during program execution. Moreover, this type of error mostly occurs when the system is running and automatically report a bug in the system.

How to avoid runtime errors?

  1. Make sure to have a good error reporting system that can capture any runtime error.
  2. Make sure to use the variables that are not initialized.
  3. Incorporate the use of frameworks to minimize such types of errors.


There is absolutely no point in leaving the programming errors unchecked before launching a particular software. Programs with varying errors will ultimately impact the program’s functioning and lead to more accessible software. However, during software development, it is important to thoroughly develop each step of the software to ensure the highest functionality.

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