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I have a project that works fine in MyEclipse 10. After I upgraded the IDE to MyEclipse 2014, the pom.xml file generates an error:
“Cannot upgrade/downgrade to Dynamic Web Module 2.3 facet. It is incompatibile with already installed facets: JSTL Libraries 1.2.1. Please modify project configuration.”
I then modified the .project file to be nothing but the project name (as a “general” project) and re-open the project. Immediately, I still get the same error message.
The error marker is on the <configuration> tag of the following plugin declaration:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<!– excludes symbol map in WEB-INF/deploy/ –>
<configuration>
<warSourceExcludes>.gwt-tmp/**,WEB-INF/classes/**</warSourceExcludes>
</configuration>
</plugin>CD_LM,
Sorry you are seeing this. However, I couldn’t replicate the problem with the information given. Note that JSTL 1.2.1 requires dynamic web module 2.4 or higher.
I’m not sure how your project got JSTL 1.2.1 with web 2.3. If possible, could you alter the Dynamic Web Module or JSTL libraries version in the facets, to correct the problem? The project facets may be altered by right clicking on the project and going to Properties->MyEclipse->Project Facets. If it’s not possible, could you provide the steps to replicate, or provide a MyEclipse 10 project (with POM but no source code is necessary) so that we can can to replicate the issue?
