LightSamlModelException: NameID value not set

[robverhoef]

I am running into this error and I can't figure out where the problem is.
I have 2 service providers with nearly identical configs. One -a test site- works (https://sptest.iamshowcase.com) , the other one doesn't.
Both configs have:

'nameID' => 'email'

This request is working:
<samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" ForceAuthn="false" ID="ab9625f3fa1286566ae35108319fc0d9b7e602beb" IssueInstant="2019-04-06T14:51:37Z" Destination="[my login url]" AssertionConsumerServiceURL="https://sptest.iamshowcase.com/acs" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Version="2.0"> <saml:Issuer>IAMShowcase</saml:Issuer> </samlp:AuthnRequest>

This one doesn't:
<samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" ID="_69e6929c04e5181bef97fb5dac543adc007242aa4f" Version="2.0" IssueInstant="2019-04-06T12:33:25Z" Destination="[my login url]" AssertionConsumerServiceURL="[my clients url]" ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"> <saml:Issuer>[my clients url]</saml:Issuer> <samlp:NameIDPolicy Format="urn:oasis:names:tc:SAML:2.0:nameid-format:transient" AllowCreate="true"/> </samlp:AuthnRequest>

Obviously they share the same metadata.xml. And I'm not sure if this is relevant, but my metadata.xml contains:
<md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat>
My client requested this setting.

Here is a part of the stacktrace:

(1/1) LightSamlModelException
NameID value not set

in AbstractNameID.php line 160
at AbstractNameID->prepareForXml()
in AbstractNameID.php line 172
at AbstractNameID->serialize(object(DOMElement), object(SerializationContext))
in AbstractSamlModel.php line 55
at AbstractSamlModel->oneElementToXml('Issuer', object(DOMElement), object(SerializationContext), null)
in AbstractSamlModel.php line 77
at AbstractSamlModel->singleElementsToXml(array('Issuer'), object(DOMElement), object(SerializationContext))
in SamlMessage.php line 304
at SamlMessage->serialize(object(DOMElement), object(SerializationContext))
in StatusResponse.php line 73
at StatusResponse->serialize(object(DOMElement), object(SerializationContext))
in Response.php line 144
at Response->serialize(object(DOMDocument), object(SerializationContext))
in HttpPostBinding.php line 35
at HttpPostBinding->send(object(MessageContext))
in SamlAuth.php line 242

Could this be a bug or am I missing something?
I would be would be really grateful if somebody could point me in the right direction.

[sulaphenkatzion]

This is due to saml.php config files issue. settings need to be corected. I have corrected and it seems to be working correctly.

[AyodejiO]

What exactly did you correct, sir?

[bm2ilabs]

You have to check if the "encoded" url is the same as "destination" in config