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Hi, I tried to upgrade my Java 16 to Java 17, but the Compiler Compliance Level did not allow me to select the option "17" (the highest possible option was the old "16"). I tried to install the Eclipse Support For Java 17 via the Marketplace, but this did not solve the issue. However, since this support plug-in stated that one should install also the latest Eclipse version (4.21) and I had only 4.20 running, I decided to re-install the Eclipse IDE. Now, when I select my old workspace, I receive a host of error messages (see log below). Moreover, my marketplace has disappeared. I still cannot set the Compiler Compliance Level to "17". Some of the many, many error messages in my error log include (I only list the first five. The rest sounds very similar, though): Invalid input url:platform:/plugin/org.eclipse.mylyn.tasks.ui/icons/eview16/task-list.gif Unable to resolve plug-in "org.eclipse.mylyn.tasks.ui". Invalid input url:platform:/plugin/org.eclipse.mylyn.tasks.ui/icons/eview16/task-list.gif Unable to retrieve the bundle from the URI: bundleclass://org.eclipse.recommenders.news.rcp/org.eclipse.recommenders.internal.news.rcp.toolbar.NewsToolControl The image could not be loaded: URLImageDescriptor(platform:/plugin/org.eclipse.eclemma.ui/icons/full/eview16/coverage.png)
So, I actually managed to get rid of the flood of error messages by resetting perspective. And I managed to re-install the Marketplace. However, Eclipse is now flagging all my projects in the workspace with an error (i.e., the little red "x"). When I look into those projects, there are no errors, at least none that are obvious to me. I tried to clear the issue by using the Project/Clean function. However, that results in another error message and the error signs on the projects remain. This is the error message: Errors occurred during the build. Errors running builder 'Java Builder' on project 'CrypticORFDatabase_v2.0'. Cannot read field "id" because "local" is null Anyone has an idea how to solve this?
