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SQL Developer 20.4 will not start on Windows 10

User_OWSM5 Member Posts: 1 Green Ribbon

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



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