Has already been declared in current scope : ERROR

[kunal5959]

Posted on February 08, 2013 at 14:22In pal.h{............................................typedef enum   {    PAL_IOLSTATE_NOREQUEST,    PAL_IOLSTATE_ACTIVE_REQUEST,    PAL_IOLSTATE_APP_ACTIVE} pal_RequestState_t;extern pal_RequestState_t pal_eRequestState ;......................;}in main.c{#include ''pal.h''#include ''stm32f10x_conf.h''#include ''datatypes.h''#include <stdlib.h>code...........................................pal_RequestState_t  pal_eRequestState = PAL_IOLSTATE_NOREQUEST;}In one of my codes written IAR workbench C++ IDE for microcontroller STM32F100, after compiling i am getting a syntax error as:----Error[Pe256]: invalid redeclaration of type name ''pal_RequestState_t'' Error[Pe101]: ''PAL_IOLSTATE_NOREQUEST'' has already been declared in the current scope Error[Pe101]: ''PAL_IOLSTATE_ACTIVE_REQUEST'' has already been declared in the current scope (at line 487) Error[Pe101]: ''PAL_IOLSTATE_APP_ACTIVE'' has already been declared in the current I am not able to figure out the error as there exists no other instance where i have declared these enum variables. I wonder if it is related to compiler settings.Please excuse me if i have insufficient information here as i af just shown a part of the code which needs to be verified.Can anyone help me  with this error???

[Tesla DeLorean]

Posted on February 08, 2013 at 15:13

Perhaps you've included the file multiple time, not sure the variable is ''extern'' in the context you define.

You could address the repeat inclusion of pal.h with the usual #ifdef PAL_H / #define PAL_H type construct. You could review the line(s) the error is flagging for current and prior definitions. You could use ''Find in File'' or other browsing options.