When I installed Sitecore 9.0.2 and Sitecore Commerce 9.0.2, I am getting below errors in the log files:
ERROR Unable to connect to [https://localhost:8983/solr], Core: [sitecore_sxa_master_index]
ERROR Unable to connect to [https://localhost:8983/solr], Core: [sitecore_sxa_web_index]
The above issue is not related to the Sitecore Commerce but it is related to Sitecore 9.0.2 and Sitecore SXA (Sitecore Experience Accelerator).
When you open the SOLR, you will not find these above cores (sitecore_sxa_master_index and sitecore_sxa_web_index). I don't know the exact reason why these cores have not created. :) Since these cores don't exist, so you can fix these issues by creating these cores inside the SOLR.That's all.
Thanks and good day ahead.
SITECORE CLI LOGIN ERROR - /.well-known/openid-configuration: Bad Gateway
WALKTHROUGH OF ASP.NET RENDERING SDK
SETTING UP ASP.NET RENDERING SDK
DISABLE SITECORE PUBLISHING SERVICE
SETUP SITECORE PUBLISHING SERVICE
SITECORE CONNECT CONNECTOR - CONTENT HUB