android - Permission required to use UsageStatsManager -

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i'm trying use usagestatsmanager. understand need put following android manifest:

<uses-permission     android:name="android.permission.package_usage_stats"     tools:ignore="protectedpermissions" />

however, eclipse throws following error when try that: prefix "tools" attribute "tools:ignore" associated element type "uses-permission" not bound.

how declare permission properly?

in manifest file, have add tools namespace. can declare way:

xmlns:tools="http://schemas.android.com/tools"

for example in manifest tag:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"> . . . </manifest>

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