Custom admin configuration tab not showing Magento CE 2.1

Question

I am trying to add a configuration tab to the magento admin for my custom module. The problem is that the tab is not showing and no error is given.

this is my acl.xml

 <code>
 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
 <acl>
 <resources>
 <resource id="Magento_Backend::admin">
 <resource id="Magento_Backend::stores">
 <resource id="Magento_Backend::stores_settings">
 <resource id="Magento_Config::config">
 <!-- this resource id we can use in system.xml for section -->
 <resource id="Xlii_Ekomi::config_xlii_ekomi" title="Helloworld Section" sortOrder="80" />
 </resource>
 </resource>
 </resource>
 </resource>
 </resources>
 </acl>
 </config>
 </code>

and this is my system.xml

 <code>
 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
 <system>
 <!-- Add new Tab -->
 <tab id="xlii" translate="label" sortOrder="300">
 <label>Darsh Banner</label>
 </tab>
 <section id="xlii_ekomi" translate="label" type="text" sortOrder="140" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Helloworld</label>
 <tab>xlii</tab>
 <!-- resource tag name which we have to defined in the acl.xml -->
 <resource>Xlii_Ekomi::config_xlii_ekomi</resource>
 </section>
 <group id="general" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>General Options</label>
 <field id="active" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Enabled</label>
 <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
 </field>
 </group>
 </system>
 </config>
 </code>

• Rajkumar Elumalai: remove var/* or bin/magentp cache:clean and logout admin and login then check it.
• Bart de Vries: Thanks for the response! I'm afraid i tried that already. Doesn't seem to have any effect.
• Rajkumar Elumalai: I update my answer check this

Answer 1

Check This Code Its Works for me:

 Vendor/<Modulename/
 ├── etc
 │ ├── acl.xml
 │ ├── adminhtml
 │ │ └── system.xml
 │ └── module.xml
 └── registration.php

acl.xml

 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
 <acl>
 <resources>
 <resource id="Magento_Backend::admin">
 <resource id="Magento_Backend::stores">
 <resource id="Magento_Backend::stores_settings">
 <resource id="Magento_Config::config">
 <resource id="Vendor_Modulename::config" title="Extension config example" sortOrder="50" />
 </resource>
 </resource>
 </resource>
 </resource>
 </resources>
 </acl>
 </config>

system.xml file:

 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
 <system>
 <tab id="example_tab" translate="label" sortOrder="1000">
 <label>Example tab config</label>
 </tab>
 <section id="example_section" translate="label" type="text" sortOrder="100" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Example config section</label>
 <tab>example_tab</tab>
 <resource>Vendor_Modulename::config</resource>
 <group id="general" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>General</label>
 <field id="text_example" translate="label" type="text" sortOrder="20" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Text example</label>
 </field>
 <field id="textarea_example" translate="label" type="textarea" sortOrder="50" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Textarea example</label>
 </field>
 </group>
 </section>
 </system>
 </config>

module.xml

 <?xml version="1.0"?>
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
 <module name="Vendor_Modulename" setup_version="1.0.0"/>
 </config>

registration.php

 <?php
 \Magento\Framework\Component\ComponentRegistrar::register(
 \Magento\Framework\Component\ComponentRegistrar::MODULE,
 'Vendor_Modulename',
 __DIR__
);

sample answer:

enter image description here

Let me know any problem occur.

Answer 2

If your Namspace is "Xlii" and Module name is "Ekomi" then try below code otherwise change your namespace and module name appropriate in below code.

Your acl.xml should like this.

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Acl/etc/acl.xsd">
 <acl>
 <resources>
 <resource id="Magento_Adminhtml::admin">
 <resource id="Xlii_Ekomi::module" title="ekomi" sortOrder="80">
 <resource id="Xlii_Ekomi::items" title="ekomi" sortOrder="80" />
 </resource>
 <resource id="Magento_Adminhtml::stores">
 <resource id="Magento_Adminhtml::stores_settings">
 <resource id="Magento_Adminhtml::config">
 </resource>
 </resource>
 </resource>
 </resource>
 </resources>
 </acl>
</config>

And your system.xml is

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
 <system>
 <tab id="ekomi" translate="label" sortOrder="300">
 <label>Darsh Banner</label>
 </tab>
 <section id="ekomi" translate="label" type="text" sortOrder="140" showInDefault="1" showInWebsite="1" showInStore="1">
 <class>separator-top</class>
 <label>Helloworld</label>
 <tab>ekomi</tab>
 <resource>Xlii_Ekomi::config_ekomi</resource>
 </section>
 <group id="general" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>General Options</label>
 <field id="active" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="1" showInStore="1">
 <label>Enabled</label>
 <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
 </field>
 </group>
 </system>
</config>

Hope this will help you.

• Bart de Vries: Thanks for your response! It doesnt seem to work, i get an "Undefined index" error. The answer below contains the answer, but thanks for helping