Solution to the errors: “unknown method” or “unknown compression method” with 7 Zip.
When you try to extract a .7z (7-Zip) file show the following errors:
unknown method
Or
unknown compression method
Solution:
Download and install the latest version of the 7-Zip software from
http://www.7-zip.org/download.html
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When you debug your Windows Phone application that use a task and call the Show method your app crash with the following error message:
System.InvalidOperationException:
Navigation is not allowed when the task is not in the foreground. Error: -2147220990
Solution:
Add Show method in try/catch block
For example:
[sourcecode lang=”CSharp”]
private void appBarButton_Click(object sender, EventArgs e)
{
WebBrowserTask task = new WebBrowserTask();
task.Uri = new Uri("https://www.myerrorsandmysolutions.com/");
try
{
task.Show();
}
catch
{ }
}
[/sourcecode]
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