SQL Developer 20.4 will not start on Windows 10

User_OWSM5

Have been fighting with this for a while. I have tried with the download packages that include the JRE, those that don't, the 32 bit version, installing in different locations (Program Files vs my project folder) and when I click on the exe, it seems to run for couple seconds and then just goes away. I never get any error or indication of anything happening.

Following instructions on other threads on this site, I ran the exe from the command line in BIN and got:

java.lang.module.FindException: Module jdk.jdi not found

I have verified that I have JRE 1.8:

C:\>java -version

java version "1.8.0_281"

Java(TM) SE Runtime Environment (build 1.8.0_281-b09)

Java HotSpot(TM) 64-Bit Server VM (build 25.281-b09, mixed mode)

I have seen some other posts about removing the JDK and just leaving the JRE, but unsure if I will need the JDK for other apps.

I have also uninstalled the JRE (including old versions) and reinstalled it.

My most recent extract/install was to Program Files/sqldeveloper, but it behaves the same as when I tried to run it from a project folder in My Documents.

At a bit of a loss as where to investigate next. Thanks for any pointers

David

cormaco

A JRE is not sufficient to run SQL Developer, you need either Oracle JDK 8 or 11.

The download with the bundled JDK should run out of the box.

User_PKA23

Yo tengo el mismo problema y no se resuelve de ninguna forma, ni se indica el error. No se que hacer.

thatJeffSmith-Oracle

If you're on windows, use the BIGGEST zip, that includes the JDK.

"Windows 64-bit with JDK 8 included Download(423 MB)"

User_OWSM5

I finally got it to fun from within the big download, after deleting the user info folder. There are instructions in other posts here. Thanks everyone.

sabari

I faced the same problem wherein SQL Developer was running only as Administrator and not in my login in Microsoft Windows 10 Pro. Got it resolved after I deleted C:\Users\<windows login name>\AppData\Roaming\SQL Developer\systemxx..x.x.xxx.xxxx folder.