Argument exception when calling GetList()

Question

I'm trying to get a list, more precisely the Document Library with PowerShell, but I get the following exception and I'm stuck on what I should change:

Exception calling "GetList" with "1" argument(s)
+spDocLib = $spWeb.GetList("Dokumenter")

This is my script code:

function GetDocumentLibrary($completeUrl) {

    $web = Get-SPWeb($completeUrl)

    $DocumentLibrary = $completeUrl + "/Documentlibrary"

    $spSite = Get-SPSite -Identity http://url.com

    $spWeb = $spSite.OpenWeb()  

    $spDocLib = $spWeb.GetList("Dokumenter")
}

Maybe I'm going the wrong way to get to the document library?

Answer 1

Check below solution :

$spSite = Get-SpSite "Your URL";
$List = $spSite.RootWeb.Lists["List or library Name"];

You can use below method also .

public SPList TryGetList(
    string listTitle
)

It gives null if list is not exist.

You want to use getList() methos than you have to pass guid of the list.

public SPList GetList(
    Guid uniqueId,
    bool fetchMetadata
)

Tell me if have any query: :)