Web Reference: Apr 22, 2016 · I have Java 13 as default and although SQL developer complained at startup it worked OK with it until I started it and went away from the computer, so I missed the warning screen. After that it started to show the "could not install the modules" error. Jan 16, 2026 · In this guide, we’ll break down the root causes and provide step-by-step solutions to resolve the error, ensuring you can get SQL Developer up and running smoothly. Jan 14, 2024 · After some research I found the following workaround, which worked with and fixed the above issue for both versions of SQL Developer: This fixed the issue for me, and I was able to launch the SQL Developer successfully.
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