New Post: Script Hatls after Running all Health Analyzer jobs

Hi, I've been trying to figure out what's the problem but just can't find it! I'm trying to install SharePoint 2010 on a 2008 r2 server and I'm always getting this error... I'm installing with a french service pack! I tried searching for similar problems, but couldn't find anything.

• Not changing local Admin membership of Domain\user.
• Adding Network Service to local WSS_WPG group (fixes event log warnings)...
• Network Service is already a member.
  

- Running all Health Analyzer jobs...

• Script halted!
  

Exception : System.Management.Automation.RuntimeException: Vous ne

                    pouvez pas appeler de méthode sur une expression ayant 
                    la valeur Null.
                       à System.Management.Automation.ParserOps.CallMethod(
                    Token token, Object target, String methodName, Object[]
                     paramArray, Boolean callStatic, Object valueToSet)
                       à System.Management.Automation.MethodCallNode.Invoke
                    Method(Object target, Object[] arguments, Object value)
                       à System.Management.Automation.MethodCallNode.Execut
                    e(Array input, Pipe outputPipe, ExecutionContext contex
                    t)
                       à System.Management.Automation.ParseTreeNode.Execute
                    (Array input, Pipe outputPipe, ArrayList& resultList, E
                    xecutionContext context)
                       à System.Management.Automation.StatementListNode.Exe
                    cuteStatement(ParseTreeNode statement, Array input, Pip
                    e outputPipe, ArrayList& resultList, ExecutionContext c
                    ontext)

TargetObject : RunNow
CategoryInfo : InvalidOperation: (RunNow:String) [], RuntimeException
FullyQualifiedErrorId : InvokeMethodOnNull
ErrorDetails :
InvocationInfo : System.Management.Automation.InvocationInfo
PipelineIterationInfo : {}
PSMessageDetails :