Bug 3354 - System.IO.Packaging throws NullReferenceException
Summary: System.IO.Packaging throws NullReferenceException
Status: NEW
Alias: None
Product: Class Libraries
Classification: Mono
Component: WindowsBase ()
Version: 2.8.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-02-10 05:10 UTC by cika.pero1
Modified: 2012-06-10 13:00 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

Project that reproduces the issue + expected output (4.59 KB, application/x-zip-compressed)
2012-02-10 05:10 UTC, cika.pero1

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Description cika.pero1 2012-02-10 05:10:42 UTC
Created attachment 1342 [details]
Project that reproduces the issue + expected output

Code that works with MS Visual Studio throws NullReferenceException on Mono 2.8. 

The issue is probably somewhere in System.IO.Packaging library for Mono.

When I slightly change input (xml content that I'm trying to zip) everything works as expected but current code won't.

I have attached solution that reproduces the issue. Simply run ConsoleApplication project and it will throw an exception. That exception doesn't occur on MS Visual Studio.

For testing we use MonoDevelop environment (virtual machine with Suse Linux with Mono).
Comment 1 esalgado 2012-06-10 13:00:41 UTC
Found the same issue while trying to use EPPlus (http://epplus.codeplex.com/) to read an Excel .xlsx file.

It throws a NullReferenceException on Mono and works OK on MS. Debugging EPPlus I arrive to the line where it tries to read the file through System.IO.Packaging.Package.GetPart(WorksheetUri) to a StreamReader.

I'm using MonoDevelop 3.01. with Mono 2.10.8 on Windows.