NetworkSecurityConfig: No Network Security Config specified, using platform default Error response code: 400

Solution 1:

Try these solutions

Solution 1)

Add the following attribute to the <application tag in AndroidManifest.xml:

android:usesCleartextTraffic="true"

Solution 2)

Add android:networkSecurityConfig="@xml/network_security_config" to the <application tag in app/src/main/AndroidManifest.xml:

<application
        android:name=".ApplicationClass"
        android:allowBackup="true"
        android:hardwareAccelerated="false"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:largeHeap="true"
        android:networkSecurityConfig="@xml/network_security_config"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

With a corresponding network_security_config.xml in app/src/main/res/xml/:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true" />
</network-security-config>

Refer this answer for more info: Download Manger not working in Android Pie 9.0 (Xiaomi mi A2)

Solution 2:

Edited Answer Remove <domain includeSubdomains="true">secure.example.com</domain> from the code.

Use just:

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <base-config cleartextTrafficPermitted="true" />
</network-security-config>

And It will work for any URL or IP.

Try to set cleartextTrafficPermitted=false

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config cleartextTrafficPermitted="true">
       <domain includeSubdomains="true">secure.example.com</domain>
    </domain-config>
</network-security-config>

Solution 3:

i was also facing the same problem ,and tried many solutions(adding config etc things),but they didn't work for me..I sit and checked my code carefully, There was something wrong in the code which i've wrote to access the node. Not a syntactic error, it's node name missmatch.