Can't login with Saml

Account not provisioned.
Your account is not provisioned, access to this service is thus not possible.

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Steps to reproduce

1.login

Server configuration

Operating system: Ubuntu

**Web server: nginx 1.17.8

**Database: mysql

**PHP version: 7.4

**Nextcloud version: 18.0.0
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My IDP is Auth0

Logs

Nextcloud log (data/owncloud.log)

Insert your Nextcloud log here

Error | index | OneLogin\Saml2\Error: Invalid array settings: idp_entityId_not_found |   | 2020-02-05T09:27:05-0800
-- | -- | -- | -- | --
Fatal | user_saml | IDP parameter for the UID (urn:oid:1.3.6.1.4.1.5923.1.1.1.6) not found. Possible parameters are: ["http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/nameidentifier","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/emailaddress","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/name","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/upn","http:\/\/schemas.auth0.com\/identities\/default\/connection","http:\/\/schemas.auth0.com\/identities\/default\/provider","http:\/\/schemas.auth0.com\/identities\/default\/isSocial","http:\/\/schemas.auth0.com\/picture","http:\/\/schemas.auth0.com\/nickname","http:\/\/schemas.auth0.com\/email_verified","http:\/\/schemas.auth0.com\/clientID","http:\/\/schemas.auth0.com\/updated_at","http:\/\/schemas.auth0.com\/created_at"] |   | 2020-02-05T09:25:10-0800
Fatal | user_saml | IDP parameter for the UID (urn:oid:1.3.6.1.4.1.5923.1.1.1.6) not found. Possible parameters are: ["http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/nameidentifier","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/emailaddress","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/name","http:\/\/schemas.xmlsoap.org\/ws\/2005\/05\/identity\/claims\/upn","http:\/\/schemas.auth0.com\/identities\/default\/connection","http:\/\/schemas.auth0.com\/identities\/default\/provider","http:\/\/schemas.auth0.com\/identities\/default\/isSocial","http:\/\/schemas.auth0.com\/picture","http:\/\/schemas.auth0.com\/nickname","http:\/\/schemas.auth0.com\/email_verified","http:\/\/schemas.auth0.com\/clientID","http:\/\/schemas.auth0.com\/updated_at","http:\/\/schemas.auth0.com\/created_at"]

Start with data/owncloud.log and the user_saml authentication flow, using the reported Auth0 attributes and missing UID claim as the reproduction context. Determine whether the issue is in claim mapping or provisioning, and consider it done only when the stated setup can complete login without the reported error and the behavior is covered by an appropriate check.