How to solve the problem that H file cannot be opened in IAR

I am using IAR EW8051-EV-750A.

There are often errors during runtime, such as: Fatal Error[Pe005]: could not open source file "hal.h" D:CC2430 Tester-0.6PER-ReceiveLibrarycc2430HALsourcewait.c 23. After checking the information, I found that the path was not configured properly. Let me talk about the configuration below. The figure below shows what I have configured (different programs have different configurations).

For example, if the project file is in D:CC2430 Tester-0.6PER-ReceiveApp_Excc2430IAR_files, and the h file is in D:CC2430 Tester-0.6PER-ReceiveLibrarycc2430HALinclude, then $PROJ_DIR$......Librarycc2430HALinclude will do.

Knowledge points:

In the text box that defines the path of the included file, there are two very important syntaxes for defining the path of the included file. One is $TOOLKIT_DIR$, which means that the path of the included file is in the 8051 folder of the IAR installation path. That is to say, if IAR is installed in the C drive, it means the path C:Program FilesIAR SystemsEmbedded Workbench 4.05 Evaluation version8051. The other is $PROJ_DIR$, which means that the path of the included file is in the project file, that is, the same directory as the eww file and ewp file. In the project we just created, if this language is used, it means that the file now points to the folder C:Documents and SettingsAdministratorDesktopproject. There are two very important symbols used in conjunction with these two languages, which are ".." and "folder name".

..: Return to the previous folder

Folder name: means entering the folder named "folder name".

Let’s look at two specific examples.

$TOOLKIT_DIR$inc: This sentence means that the include file points to C:Program FilesIAR SystemsEmbedded Workbench 4.05 Evaluation version8051inc.

$PROJ_DIR$..Source: This sentence means that the included files point to the Source folder in the parent directory of the project directory.