Since Eclipse 2026-09 has been published, a new issue came up where updating Eclipse 2026-06 or installing ABAP development tools for Eclipse can leave Eclipse in an unusable state. The installation will succeed, but the affected installations fail to start again due to dependency conflicts involving different versions of the org.objectweb.asm library.
We sincerely apologize for the inconvenience this may cause. We understand that a broken IDE is causing disruptions in development activities. Please help us in making other ADT users aware of this issue and how to avoid it.
The root cause
The root cause lies in the Eclipse update mechanism itself. After the release of Eclipse 2026-09, Eclipse pulls newer dependencies of org.objectweb.asm into the 2026-06 installation, resulting in incompatible bundle versions. As this is caused by the underlying Eclipse platform, we cannot fix the issue from the ADT side.
For more information on this, please find the following issues: https://github.com/eclipse-equinox/p2/issues/1119 and https://github.com/eclipse-platform/eclipse.platform.ui/issues/4328.
How to avoid and recommended solution
In case you have an existing installation of Eclipse 2026-06 and there is an update for the tools, please follow these instructions to avoid broken Eclipse installation:
- Open your existing Eclipse installation and do not follow the automated update pop-up.
- Open “Help” -> “Install New Software”. Click on Manage and deactivate the update site “SAP Development Tools” (e.g. https://tools.hana.ondemand.com/2026-06 or https://tools.hana.ondemand.com/latest) by unchecking the box in the table.
- Click on “Help” -> “Check for Updates” and do the update to Eclipse 2026-09.
- After successful update to Eclipse 2026-09, you can activate the “SAP Development Tools” update site with for example https://tools.hana.ondemand.com/latest again and do the ADT update by using “Help” -> “Check for Updates”.
- Re-use your existing workspace to keep your ABAP projects and other data.
If you have a broken installation, the recommended approach is a fresh installation of Eclipse 2026-09 together with the latest ADT version. This is currently the simplest and most reliable recovery option and with re-using the workspace, you will keep all your data!
Further references
Please see also note 3806264. It also describes how to install the tools into Eclipse 2026-06.
