diff --git a/.gitignore b/.gitignore
index c6127b3..5e018db 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,6 +38,8 @@
 
 # Debug files
 *.dSYM/
+.idea/
+cmake-build-debug/
 *.su
 *.idb
 *.pdb
diff --git a/error.h b/error.h
new file mode 100644
index 0000000..cf2ebe8
--- /dev/null
+++ b/error.h
@@ -0,0 +1,29 @@
+#ifndef ERROR_H
+#define ERROR_H
+
+#include <stdint.h>
+
+/**
+ * Error codes enum.
+ * SUCCESS = 0.
+ * ERROR < 0.
+ */
+typedef enum {
+    SRIX_SUCCESS,
+    NFC_ERROR = INT8_MIN,
+    SRIX_ERROR
+} SrixErrorCode;
+
+/**
+ * Error structure that contains a description message.
+ */
+typedef struct SrixError {
+    SrixErrorCode errorType;
+    char const *message;
+} SrixError;
+
+#define SRIX_NO_ERROR                     ((SrixError) {.errorType = SRIX_SUCCESS})
+#define SRIX_ERROR(type, errorMessage)    ((SrixError) {.errorType = (type), .message = (errorMessage)})
+#define SRIX_IS_ERROR(isError)            ((isError).errorType != SRIX_SUCCESS)
+
+#endif /* ERROR_H */
\ No newline at end of file