Compilation Error in Application

[EDISPHERE GS]

Hello All,

I used the following steps to create a Console App and added the lexer.l for compiling and followed steps in this https://sourceforge.net/p/winflexbison/wiki/Visual%20Studio%20custom%20build%20rules/
when I get the following errors when compiling lexer.l

Severity Code Description Project File Line Suppression State
Error MSB3721 The command "
start /B /WAIT /D "C:\VSTS\ABI\Src\ExpCompile\ConsoleApplication1\" win_flex.exe --outfile="Lexer.flex.cpp" --wincompat --lex-compat --c++ "Lexer.l"
exit /b %errorlevel%" exited with code 1. ConsoleApplication1 C:\VSTS\ABI\win_flex_bison-latest\custom_build_rules\win_flex_bison_custom_build.targets 129
Error MSB3721 The command "
start /B /WAIT /D "C:\VSTS\ABI\Src\ExpCompile\ConsoleApplication1\" win_flex.exe --outfile="Lexer.flex.cpp" --wincompat --lex-compat --c++ "Lexer.l"
exit /b %errorlevel%" exited with code 1. ConsoleApplication1 C:\VSTS\ABI\win_flex_bison-latest\custom_build_rules\win_flex_bison_custom_build.targets 129
Error MSB3721 The command "
start /B /WAIT /D "C:\VSTS\ABI\Src\ExpCompile\ConsoleApplication1\" win_flex.exe --outfile="Lexer.flex.cpp" --wincompat --lex-compat --c++ "Lexer.l"
exit /b %errorlevel%" exited with code 1. ConsoleApplication1 C:\VSTS\ABI\win_flex_bison-latest\custom_build_rules\win_flex_bison_custom_build.targets 129

Any idea what could be the reason for these errors.

Thanks
GS

[Alex Zhondin]

Hi GS,

The first thing I suggest to check is if path to win_flex.exe and win_bison.exe is added to PATH environment variable.

Regards,
Alex

[EDISPHERE GS]

Thanks the path wasnt there I added it but it still give the same error

[Alex Zhondin]

Can you go to "C:\VSTS\ABI\Src\ExpCompile\ConsoleApplication1\" folder and run

win_flex.exe --outfile="Lexer.flex.cpp" --wincompat --lex-compat --c++ "Lexer.l"

there?
Do you have Lexer.l in this folder?
Does the command produce Lexer.flex.cpp file?

[EDISPHERE GS]

Hi Alex,

I tried executing it through the command prompt but I get the following error:

C:\VSTS\ABI\Src\ExpCompile\ConsoleApplication1>win_flex.exe --outfile="EXPLEXER.cpp" --wincompat --lex-compat --c++ "Lexer.l"
Lexer.l:1: bad character: %
Lexer.l:1: unknown error processing section 1
Lexer.l:1: unknown error processing section 1
Lexer.l:1: unknown error processing section 1
Lexer.l:2: bad character: /
Lexer.l:2: bad character: /
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:2: unknown error processing section 1
Lexer.l:3: bad character: /
Lexer.l:3: bad character: /
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:3: unknown error processing section 1
Lexer.l:4: bad character: /
Lexer.l:4: bad character: /
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:4: unknown error processing section 1
Lexer.l:5: unrecognized '%' directive
Lexer.l:45: unrecognized '%' directive
Lexer.l:47: bad character: {
Lexer.l:55: bad character: }
Lexer.l:55: bad character: ;
Lexer.l:58: bad character: %
Lexer.l:58: bad character: }
win_flex.exe: Can't use -+ with -l option

Thanks
GS

[Alex Zhondin]

it seems your Lexer.l file is not compatible with the latest GNU flex tool.
may be older version will help or your Lexer.l file was previously processed by very different tool