.Net problem "Illegal characters in path."

Question

Hi all ok I'm not a .net developer I'm from a PHP, python background and I'm not sure what to do with this.

I have the following error when trying to load one of our sites. Please can someone help

[ArgumentException: Illegal characters in path.] System.IO.Path.CheckInvalidPathChars(String path) +7491109 System.IO.Path.GetFileName(String path) +19 System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize) +16 System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials) +77 System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn) +54 System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver) +74 System.Threading.CompressedStack.runTryCode(Object userData) +70 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) +0 System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state) +108 System.Xml.XmlTextReaderImpl.OpenUrl() +186 System.Xml.XmlTextReaderImpl.Read() +208 System.Xml.XPath.XPathDocument.LoadFromReader(XmlReader reader, XmlSpace space) +217 System.Xml.XPath.XPathDocument..ctor(String uri, XmlSpace space) +116 System.Xml.XPath.XPathDocument..ctor(String uri) +6 OpenBay.Utils.XPathUtils.GetNodes(String xpathQuery, String xmlFile) +30 OpenBay.Wms.Controllers.SiteController.SetErrorPages(Site site) +21 OpenBay.Wms.Controllers.SiteController.GetSite(Uri uri, DirectoryInfo dir, String applicationName) +104 OpenBay.Wms.HttpModule.UrlProcessHttpModule.GetSiteParameters(HttpApplication app, RequestInfo info) +172 OpenBay.Wms.HttpModule.UrlProcessHttpModule.ProcessRequest(Object o, EventArgs args) +338 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75

thanks guys

It would be more helpful if you provided the pathname so we can look for the characters that are not allowed. — ZippyV, Nov 16 '09 at 11:22

score 7 · Answer 1 · edited May 23 '17 at 12:31

7

Your code will call System.IO.Path.CheckInvalidPathChars, which in turn checks for the the following:

double quote (")
left angle bracket (<)
right angle bracket (>)
veritical bar (|)

and for control characters less than 32 decimal (space).

So Make sure your path doesn't contain them.

Edit: comment from Guy Lowe

my issue was my unescaped \ in c:\ making it c:\ fixed it

edited May 23 '17 at 12:31

Community

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answered Nov 16 '09 at 11:22

Graviton

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Sorry I'm not sure where System.IO.Path.CheckInvalidPathChars is. Where would I locate this? – Ben Nov 16 '09 at 11:31
You will locate this inside the `System.IO.Path` namespace, the important thing is to make sure that your path doesn't contain the above characters. – Graviton Nov 16 '09 at 11:33
You need to import the `System.IO` namespace before using the `Path` class (no need for referencing any dll as it is declared in mscorlib) – Yogesh Nov 16 '09 at 11:36
@Ngu: Path is a class, not a namespace. – Yogesh Nov 16 '09 at 11:36
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`CheckInvalidPathChars` is internal, you can't use it from outside (Nitpicker's corner: *without reflection*). – Ray Jan 30 '15 at 16:41
my issue was my unescaped \ in c:\ making it c:\\ fixed it. – Guy Lowe Feb 29 '16 at 02:31
How can I see the path value? – eaglei22 Feb 23 '17 at 14:55
nvm, saw it in my error, "System.Web.HttpContext.GetFilePathData()" – eaglei22 Feb 23 '17 at 14:56
I have same issue : where i can edit this path value ? in environment variables ? (I am React Developer so don't have that much idea about .net) – CyberAbhay Oct 11 '18 at 10:54

score 0 · Answer 2 · answered Nov 16 '09 at 11:23

0

Nice Stacktrace, but the invalid path would be more helpful.

In my oponion, the path provided to OpenBay.Utils.XPathUtils.GetNodes(string, string) has some invalid arguments. Use System.IO.Path.CheckInvalidPathChars() to check which characters are invalid and maybe contained in the argument provided to the method above.

answered Nov 16 '09 at 11:23

Jehof

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Sorry the path is just the domain root we haven't changed anything on the site for a long while so this is out of the blue. Where is Use System.IO.Path.CheckInvalidPathChars() located? – Ben Nov 16 '09 at 11:32

score 0 · Answer 3 · answered Apr 30 '21 at 12:30

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Please look at this link, I am using VS 2019: VS Test cases issue, NUnit

answered Apr 30 '21 at 12:30

Rohit Maurya

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.Net problem "Illegal characters in path."

3 Answers3