When I find it that error file in my drive where my databases are located, I see those log files....
E:\Neo4JDatabase\neo4jDatabases\database-084b461b-72c3-4d5b-b85f-74ce2844ea5b\installation-4.0.1\logs
if you run into issues with Desktop 1.4.7 on Windows could you try this and report back?
try asking them to delete the C:\Users[USERNAME]\AppData\Local\Neo4j\Relate\Cache\plugin-sources\default-sources.json file and see if that helps? We think that the reason for desktop not starting for some users might be that the cached plugin sources has become corrupt
When I look for the desktop-app log file, I see those files
C:\Users\Admin.Neo4jDesktop
Hello! I can't open and see anything in the userData.json file because it's either binary or unsupported text encoding .
Should I delete userData.json file?
After uninstall AdoptOpenJDK, I still see this folder in the following path....
C:\Program Files (x86)\AdoptOpenJDK\jre-8.0.242.08-hotspot
Here is the things from the JAVA-HOME variables in my Window.
Hello! When I changed TEMP environment variable to the same value as TMP variable as following figures, I got another error like this:
I have already changed the value of TEMP variable like this: But, the Neo4j desktop can't launch yet. And, I see different error in log file:
[2021-07-20 14:33:15.155] [error] App initialization error Error: EPERM: operation not permitted, mkdir 'C:\PROGRA~2\ADOPTO~1\JRE-80~1.08-\Neo4j'
[2021-07-20 14:35:53.439] [info] Starting Neo4j Desktop 1.4.7 @ Windows_NT 10.0.14393
[2021-07-20 14:35:53.472] [error] Protocol Manager error TypeError [ERR_INVALID_URL]: Invalid URL: --allow-file-access-from-files
at onParseError (internal/url.js:256:9)
at new URL (internal/url.js:332:5)
at Object.t.default (E:\GraphDatabase\Neo4j Desktop\resources\app.asar\dist\main.prod.js:1:196083)
at App. (E:\GraphDatabase\Neo4j Desktop\resources\app.asar\dist\main.prod.js:1:226684)
at App.emit (events.js:315:20)
at App.EventEmitter.emit (domain.js:483:12)
at App.emitter.emit (E:\GraphDatabase\Neo4j Desktop\resources\app.asar\node_modules@sentry\electron\dist\main\integrations\electron.js:66:25)
Hello! Luckily, when I remove entirely the TEMP variable (while not modifying the TMP variable), OMG, my lovely Neo4j Desktop start running.....I Agree the NEO4J LICENSE AGREEMENT FOR NEO4J DESKTOP SOFTWARE . Then, I choose the new folder " for storing application data". Here is the screen and Neo4j software is working like that: why it take time to launch? something wrong?. Or I'm still waiting to see the Neo4j Desktop Screen..Hope it's almost done..It takes already 30 mins..from starting..
Here is the whole log file: 
Thanks 
log2.txt (604.8 KB)
Yeyyy! I can see the Screen now. Thank you very much!
I think each instance contain only one database. Here are my old data that I tested ..
Alright, the safest solution in your case would be to create dump files from the old databases, move those files into Desktop and then create new DBMSs (Neo4j installations) from them.
To do this, you need to first find your old DBMSs in your file system:
-
Go in the old desktop data directory.
-
Open the
neo4jDatabasesfolder. -
Now you should see a list of folders with a name following this format
database-<id>. -
Inside each of these folders there can be one or more folders named
installation-<version>. If there are multiple installation folders, open only the one with the most recent version.
The content of the installation folder will look similar to this:
Then create the dump files:
-
Once inside an
installation-<version>folder, open PowerShell in that location (shift + right clickin the file explorer and click on "Open PowerShell window here"). -
Run the dump command (more info about it here). You can use whatever name you want in the
--toargument, just make sure that it ends in.dump.
.\bin\neo4j-admin.bat dump --database=neo4j --to=dbname.dump
- If successful you'll see a message similar to this:
Done: 73 files, 1.116MiB processed.
Finally, load the dump files into desktop:
- Drag the
.dumpfile that was just created into the corresponding project in Desktop.
- Select "Create new DBMS from dump" on the options menu.
- Make sure to select the same version the DBMS was running before. The patch number doesn't have to match, but the rest needs to be the same. So for example if your DBMS was using version 4.0.1 any 4.0.x version would be fine.
- Click on "Create" and you're done.
Let me know if any steps are unclear, or if you come across any other issues in the process.
Thank you! I'm trying now.. what wrong with that?
Thanks a million for your patient on my issues ! Now, I have already got my data back. It was successfully done as your kindly suggestions and commands with Neo4j Desktop new version. 
I'll continue and use neo4j a lot more.. Sometimes, I was misunderstood some solutions because of my worries...
Is that correct?
When I copied and run that command "The filename, directory name, or volume label syntax is incorrect."...
Thanks!
NODES 2022, Neo4j Online Education Summit
All the sessions of the conference are now available online
