Hi,
the below method loads at startup a file named lastfile.txt that contains a single text line indicating the full path of a file to load.
I save my compiled app on dropbox and use it on two computers so, for obvious reasons, the file path contained inside lastfile.txt works only on one of the two computers and on the other one I get the error message: “exception message: the path passed into new Folderitem was invalid”.
I guess that it refers to the line hilited in bold, but I dont understand why since the part with IF g.exists should take care of “wrong paths”.
What am I missing here fellow coders ???
thanks
'Tries to load lastfile.txt for reading the full path of the file to load
Dim F as FolderItem
Dim Fname as string
Fname=left(app.ExecutableFile.nativepath,len(app.ExecutableFile.absolutepath)-4) ' getting the path of the libs folder
fname=fname+" Libs/LastFile.TXT" ' it's in the libs folders
f=new FolderItem( Fname, folderitem.PathTypeAbsolute)
If f.Exists Then
// Be aware that TextInputStream.Open coud raise an exception
Dim t As TextInputStream
Try
t = TextInputStream.Open(f)
t.Encoding = Encodings.utf8
dim Riga as string
Riga= t.ReadAll
dim G as FolderItem
[b] g=new FolderItem(trim(riga),folderitem.PathTypeAbsolute) <<<<<<<----I suspect this line causes error when riga contains a wrong path[/b]
if g.Exists then 'checks if exists, if not then kill file
app.LoadFile trim(riga)' trim necessary otherwise wont read file path
else
f.Delete ' erase lastfile.TXT
end if
Catch e As IOException
t.Close
'cant read for some reason
End Try
else
End If
Same thing. I still get the error:
An exception if class unsupported format exception was not handled. The application must shut down.
Exception message: the path passed into new Folderitem was invalid
[quote=202506:@Horacio Vilches]Same thing. I still get the error:
An exception if class unsupported format exception was not handled. The application must shut down.
Exception message: the path passed into new Folderitem was invalid
??? What can it be ??[/quote]
Maybe your LIbs folder. Under Windows, a subdirectory is indicated by a backslash, not a slash as you did. Here it is, corrected :
Fname=left(app.ExecutableFile.nativepath,len(app.ExecutableFile.absolutepath)-4) ' getting the path of the libs folder
fname=fname+" Libs\\LastFile.TXT" ' it's in the libs folders
Whenever you build a FolderItem from a path, you should test it is not nil. f.Exists is not enough there as well.
[quote]An exception if class unsupported format exception was not handled. The application must shut down.
Exception message: the path passed into new Folderitem was invalid[/quote]
The path is invalid.
It can be f, it can be g. And testing for nil won’t help, as the error happens in the construction.
I’m testing for BOTH NIL and exist and It’s also inside a Try-catch !
Also the error cannot be detected at design time because it’s related to a file that is saved on the libs folder hence it happens only
with the built exe files.
I’m afraid I’ll have to quit on this one
[quote=202975:@Horacio Vilches]I’m testing for BOTH NIL and exist and It’s also inside a Try-catch !
Also the error cannot be detected at design time because it’s related to a file that is saved on the libs folder hence it happens only
with the built exe files.
I’m afraid I’ll have to quit on this one :-([/quote]
Before putting a Try Catch you need to know the exact error. What do you get in App.UnhandledException ?
