Today, when I tried to drag and drop a component from the community hub (open in Chrome browser) onto a workflow in KNIME AP 5.5 MUI, it paused for a moment, and did not drop the component. There was no error message displayed.
Performing the same operation in AP 5.5 Classic, returned the following error:
As it was one of my own components, I tried dragging the component directly from within 5.5 MUI by finding the component in my hub space in Space Explorer, and it also returned a similar message:
I was, however, able to open the component itself (i.e. opening as a workflow, rather than drag/drop) and 5.5 MUI was able to open it (so it isn’t a network/firewall issue as indicated by the error message).
Things to note. My laptop was Windows 10 until Thursday and was updated to Windows 11 Thursday evening, but given that AP 5.4 is still functioning perfectly ok, I don’t feel that this is material.
The component can also be dragged/dropped into KNIME AP 5.4 with no problem on the same laptop, and I wasn’t having the problem previously in 5.5. Once again this indicates the issue is with my 5.5 installation’s interaction with the hub rather than a network issue on my laptop (unless - conceivably - 5.5 is using different network access and Windows 11 is perhaps blocking that where Windows 10 didn’t, but I’d expect others who are in Win 11 to be talking about it too! So for now I think it is not a Win 11 update issue.
Although this seems to be a different issue, could it be related to the hub drag&drop issue raised by @mwiegand a few days back…
Currently my AP 5.5 is effectively unusable if I wish to include components. As well as the “ignore drag/drop” and “error message” behaviour described above, this has also resulted in AP 5.5 freezing, although I haven’t ascertained the sequence of events causing it to freeze.
This is the log entry when trying to drop my “Console Log Viewer” component from my hub space:
2025-07-28 11:15:02,914 : ERROR : main : : CreateMetaNodeTemplateCommand : : : Metanode loading failed with CoreException: 307 Redirect failed (firewall?): 'https://api.hub.knime.com/knime/rest/v4/repository/Users/takbb/Public/Components/Console%20Log%20Viewer:data?version=current-state'
org.eclipse.core.runtime.CoreException: 307 Redirect failed (firewall?): 'https://api.hub.knime.com/knime/rest/v4/repository/Users/takbb/Public/Components/Console%20Log%20Viewer:data?version=current-state'
at com.knime.explorer.server.hub.HubExplorerFileStore.downloadStream(HubExplorerFileStore.java:332)
at com.knime.explorer.server.rest.RestServerExplorerFileStore.openDownloadStreamAuthenticated(RestServerExplorerFileStore.java:416)
at com.knime.explorer.server.rest.RestServerExplorerFileStore.downloadWorkflowToTmpLocation(RestServerExplorerFileStore.java:1433)
at com.knime.explorer.server.rest.RestServerExplorerFileStore.resolveToLocalFile(RestServerExplorerFileStore.java:1312)
at com.knime.explorer.server.rest.RestServerExplorerFileStore.resolveToLocalFileConditional(RestServerExplorerFileStore.java:1324)
at org.knime.workbench.explorer.pathresolve.URIToFileResolveImpl.fetchRemoteFileStore(URIToFileResolveImpl.java:214)
at org.knime.workbench.explorer.pathresolve.URIToFileResolveImpl.resolveKnimeUriToLocalOrTempFile(URIToFileResolveImpl.java:192)
at org.knime.workbench.explorer.pathresolve.URIToFileResolveImpl.resolveToLocalOrTempFileInternal(URIToFileResolveImpl.java:173)
at org.knime.workbench.explorer.pathresolve.URIToFileResolveImpl.resolveToLocalOrTempFile(URIToFileResolveImpl.java:157)
at org.knime.core.util.pathresolve.ResolverUtil.resolveURItoLocalOrTempFile(ResolverUtil.java:190)
at org.knime.workbench.editor2.LoadMetaNodeTemplateRunnable.run(LoadMetaNodeTemplateRunnable.java:194)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:124)
