vb.net - BC30451 'VARIABLE' is not declared. It may be inaccessible due to its protection level -


i seem have error code below.

private sub form1_load(sender object, e eventargs) handles mybase.load     me.centertoscreen()       if my.computer.filesystem.fileexists("bin\php\php.exe")         dim phprc string = ""         dim php_binary string = "bin\php\php.exe"     else         dim php_binary string = "php"     end if      if my.computer.filesystem.fileexists("pocketmine-mp.phar")         dim pocketmine_file string = "pocketmine-mp.phar"     else         if my.computer.filesystem.fileexists("src\pocketmine\pocketmine.php")             dim pocketmine_file string = "src\pocketmine\pocketmine.php"         else             msgbox("couldn't find valid pocketmine-mp installation", msgboxstyle.exclamation, "pocketmine-mp")         end if      end if      process.start("c:\users\damian\desktop\games\pocketmine\installer\pocketmine-mp\bin\mintty.exe", "-o columns=88 -o rows=32 -o allowblinking=0 -o fontquality=3 -o font='dejavu sans mono' -o fontheight=10 -o cursortype=0 -o cursorblinks=1 -h error -t 'pocketmine-mp' -i bin/pocketmine.ico -w max" & php_binary & "" & pocketmine_file & "" & "--enable-ansi")  end sub

i keep on getting error

bc30451 'php_binary' not declared. may inaccessible due protection level.

bc30451 'pocketmine_file' not declared. may inaccessible due protection level.

what doing wrong?

(fyi, in form1_load test reasons.)

you're dimming 2 variables within if statements, once hit "end if" variables gone, or "out of scope". should research on variable scope... fix in code, first declare strings top, inside sub outside of if statements. use if statements change variables hold; way, when process call comes up, variables not out of scope:

private sub form1_load(sender object, e eventargs) handles mybase.load     me.centertoscreen()      dim php_binary string = nothing     dim pocketmine_file string = nothing      if my.computer.filesystem.fileexists("bin\php\php.exe")         php_binary = "bin\php\php.exe"     else         php_binary = "php"     end if      if my.computer.filesystem.fileexists("pocketmine-mp.phar")         pocketmine_file = "pocketmine-mp.phar"     else         if my.computer.filesystem.fileexists("src\pocketmine\pocketmine.php")             pocketmine_file = "src\pocketmine\pocketmine.php"         else             msgbox("couldn't find valid pocketmine-mp installation", msgboxstyle.exclamation, "pocketmine-mp")         end if      end if      process.start("c:\users\damian\desktop\games\pocketmine\installer\pocketmine-mp\bin\mintty.exe", "-o columns=88 -o rows=32 -o allowblinking=0 -o fontquality=3 -o font='dejavu sans mono' -o fontheight=10 -o cursortype=0 -o cursorblinks=1 -h error -t 'pocketmine-mp' -i bin/pocketmine.ico -w max" & php_binary & "" & pocketmine_file & "" & "--enable-ansi")  end sub

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