Can a lower version of myecplise's web project be opened with a higher version?

previously saved a workplace folder with myecplise professional 2014 Learning web. Can I run the previous project with another version of myecplise now?

I use ecplise to run and have the following picture error, so I am afraid that the wrong version of myecplise will have problems
clipboard.png

Apr.20,2022

can be opened in principle, and the higher version is compatible with the lower version.

The jar introduced by

is best not to use the default provided by myecplise.
if you use the jar package provided by myecplise, and you switch to other myecplise, the jar path provided by these myecplise will change. If you make a mistake, you need to Build Path it again.

and
1:jar is best managed using maven. I see the information you provide, you don't seem to use maven.
2: do not use the tomcat provided by myecplise by default.

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