[ https://issues.apache.org/jira/browse/LUCENENET-324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Digy resolved LUCENENET-324. ---------------------------- Resolution: Fixed I just made the change {code}System.Environment.GetEnvironmentVariable("OS") ?? "Linux"{code} and committed. DIGY > System.TypeInitializationException on linux > ------------------------------------------- > > Key: LUCENENET-324 > URL: https://issues.apache.org/jira/browse/LUCENENET-324 > Project: Lucene.Net > Issue Type: Bug > Environment: debian, vbnc, Visual Basic > Reporter: Johannes von Drachenfels > Priority: Minor > Attachments: Constants.patch, Constants.patch, Constants.patch > > > Problem: > When the environment variable "OS" is not present a failure occurs when > initializing an Lucene.Net.Store.FSDirectory > -------------------------------------------------------------------- > Exception: > -------------------------------------------------------------------- > > ################################ > > > > System.TypeInitializationException: An exception was thrown by the > > type initializer for Lucene.Net.Store.FSDirectory ---> > > System.TypeInitializationException: An exception was thrown by the > > type initializer for Lucene.Net.Util.Constants ---> > > System.NullReferenceException: Object reference not set to an instance > > of an object > > > > at Lucene.Net.Util.Constants..cctor () [0x00000] > > > > --- End of inner exception stack trace --- > > > > at Lucene.Net.Store.FSDirectory..cctor () [0x00000] > > > > --- End of inner exception stack trace --- > > > > at ConsoleApplication1.Module1.Main () [0x00000] > Solution: > -------------------------------------------------------------------- > This is probably caused by this line in Lucene.Net.Util.Constants.cs: > public static readonly System.String OS_NAME = > System.Environment.GetEnvironmentVariable("OS"); > Try to assign some value to the env var "OS": > OS=foo mono yourapp.exe > Robert > Workarround: > -------------------------------------------------------------------- > 'bugfix: > Dim OSSTRING As String = "" > Try > OSSTRING = System.Environment.GetEnvironmentVariable("OS") > Catch ex As Exception > OSSTRING = "" > End Try > If OSSTRING.Trim.Length = 0 Then > System.Environment.SetEnvironmentVariable("OS", "linux") > End If -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.