Internet Permission Error in Android -

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i made simple currency converter application android. taking latest currency rates internet, need give permission connect internet manifest file.

i added line manifest file before 

<uses-permission android:name="android.permission.internet" />

i created apk file of application , installed phone. android version of phone 4.4.2 , when wifi open gives error. when wifi closed application opened can't take xml data. installed apk file phone of friend , anroid version of phone 6.0. works in phone without problem.

i added lines manifest file 

<uses-permission android:name="android.permission.write_external_storage" /> <uses-permission android:name="android.permission.access_wifi_state" /> <uses-permission android:name="android.permission.change_wifi_state" /> <uses-permission android:name="android.permission.change_network_state" /> <uses-permission android:name="android.permission.access_network_state" />

but didn't work in way well.

in build gradle file compilesdkversion 23, minsdkversion 19, targetsdkversion 19.

could please me solve problem?

thank you


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