Help needed! Cannot connect to data importer with the Neo4j enterprise edition desktop on window

[fan_123]

I am using the Neo4j desktop version on windows, I want to use data importer, which was also developed by Neo4j to import data. However, I can't connect the database with the data importer together. I met this error:

Neo4jError:

WebSocket connection failure. Due to security constraints in your web browser, the reason for the failure is not available to this Neo4j Driver. Please use your browsers development console to determine the root cause of the failure. Common reasons include the database being unavailable, using the wrong connection URL or temporary network problems. If you have enabled encryption, ensure your browser is configured to trust the certificate Neo4j is configured to use. WebSocket `readyState` is: 3

I checked some document on the internet, which mentioned that I should do this: change the neo4j.conf

dbms.connector.bolt.enabled=true
dbms.connector.bolt.tls_level= FALSE

change to

dbms.connector.bolt.enabled=true
dbms.connector.bolt.tls_level= OPTIONAL

After I did this, I found that I couldn't even start my database. 

Then I found another document, which says uncomment  and change :7687 to 0.0.0.0 : 7687

#dbms.connector.bolt.listen_address=:7687
#dbms.connector.bolt.advertised_address=:7687

Still, I can't open the database. Can anybody help me?

[fan_123]

 Can anybody help me? I really need your help!!