I have recently created my first KNIME node that seems to work well on version 2.11.2. The node has been exported and included in the "dropins" directory of previous versions of KNIME (2.10.3 and 2.9.4). In both versions the following message is output to the KNIME console pane when attempting to apply the configurations.
Configure failed (NoSuchMethodError): org.knime.core.util.FileUtil.toURL(Ljava/lang/String;)Ljava/net/URL;
I beleive that this may have been caused by recent updates to the org.knime.core.util.FileUtil class and my experience configuring Eclipse is rather limited. Please advise on the steps required to resolve this issue and maintain backwards compatibility.