Silent installation error occurs NameNotFoundException

            
According to the Internet, said the silent installation method, debugging, there NameNotFoundException error.
PackageManager pm = getPackageManager ();

try {

PackageInfo pi = pm.getPackageInfo (packageName,

PackageManager.GET_UNINSTALLED_PACKAGES);

if (pi! = null) {

installFlags | = PackageManager.INSTALL_REPLACE_EXISTING;

}

} Catch (NameNotFoundException e) {

}
I do not know where the problem occurs, please played heroes silent installation!
Reply:
Do not sink ah
PostsPackageInfo pi = pm.getPackageInfo (packageName,
PackageManager.GET_UNINSTALLED_PACKAGES);
Why is being given? packageName correct ah
Seeking answers
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Online wait, expert support
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No exception is thrown to go? This is what you want to achieve ah
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context.getPackageManager (). getPackageInfo (context.getPackageName (), 0) did not look to help you
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PackageManager.INSTALL_REPLACE_EXISTING this how I do not come out of it a little
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Reference article http://www.open-open.com/lib/view/open1328536451483.html
Which is being transformed over android.jar
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Do not know the android version of the problem, I run in android4.03, an exception is thrown NameNotFoundException
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reference to the second floor mamihong reply:

line waiting, expert support

I follow your code tried it, I have here is OK, then you definitely have a problem packagename
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Can look at your packagename is how to get it?
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Direct input packagename, no problem
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You are in the simulator experiments, or in the real machine? android version?
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On a real machine, version 2.3.3

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Phone system 4.0.1
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Posted about your manifest file look
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package = "com.smart.Installback" android: versionCode = "1"
android: versionName = "1.0">

















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I do not pass the test on a real machine 4.0.3
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Is solved? Where is the problem ah I generally use 5