SimpleSAMLphp Cannot retrieve metadata for IdP 'http://simpleidp/simplesaml/saml2/idp/metadata.php' because it isn't a valid IdP for this SP
<p>I'm stuck with error simplesamlPHP
    SimpleSAML_Error_Error: UNHANDLEDEXCEPTION
    Backtrace:
    0 /var/www/simplesp/www/module.php:180 (N/A)
    Caused by: SimpleSAML_Error_Exception: Cannot retrieve metadata for IdP '<a href="http://URLIDP/simplesaml/saml2/idp/metadata.php" rel="nofollow noreferrer">http://URLIDP/simplesaml/saml2/idp/metadata.php</a>' because it isn't a valid IdP for this SP.
    Backtrace:
    2 /var/www/simplesp/modules/saml/lib/Auth/Source/SP.php:112 (sspmod_saml_Auth_Source_SP::getIdPMetadata)
    1 /var/www/simplesp/modules/saml/www/sp/saml2-acs.php:91 (require)
    0 /var/www/simplesp/www/module.php:137 (N/A)</p>

<p>Config for me with SP :</p>

<pre><code>/var/www/simplesp/metadata/saml20-idp-remote.php

$metadata['URLIDP'] = array(
    'SingleSignOnService'  =&gt; 'URLIDP/simplesaml/saml2/idp/SSOService.php',
    'SingleLogoutService'  =&gt; 'URLIDP/simplesaml/saml2/idp/SingleLogoutService.php',
    'certFingerprint'      =&gt; 'c9ed4dfb07caf13fc21e0fec1572047eb8a7a4cb'
);
</code></pre>

<p>Config for me with Idp :
/var/www/simpleidp/metadata/saml20-sp-remote.php</p>

<pre><code>$metadata['URLSP/simplesaml/module.php/saml/sp/metadata.php/default-sp'] = array(
    'SingleLogoutService' =&gt;
        array(
            0 =&gt;
                array(
                    'Binding' =&gt; 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect',
                    'Location' =&gt; 'URLSP/simplesaml/module.php/saml/sp/saml2-logout.php/default-sp',
                ),
        ),
    'AssertionConsumerService' =&gt;
        array(
            0 =&gt;
                array(
                    'index' =&gt; 0,
                    'Binding' =&gt; 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST',
                    'Location' =&gt; 'URLSP/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp',
                ),
            1 =&gt;
                array(
                    'index' =&gt; 1,
                    'Binding' =&gt; 'urn:oasis:names:tc:SAML:1.0:profiles:browser-post',
                    'Location' =&gt; 'URLSP/simplesaml/module.php/saml/sp/saml1-acs.php/default-sp',
                ),
            2 =&gt;
                array(
                    'index' =&gt; 2,
                    'Binding' =&gt; 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Artifact',
                    'Location' =&gt; 'URLSP/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp',
                ),
            3 =&gt;
                array(
                    'index' =&gt; 3,
                    'Binding' =&gt; 'urn:oasis:names:tc:SAML:1.0:profiles:artifact-01',
                    'Location' =&gt; 'URLSP/simplesaml/module.php/saml/sp/saml1-acs.php/default-sp/artifact',
                ),
        ),

);
</code></pre>

<p>Can help me resolve problem ?</p>