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Spring Development Environment for Eclipse
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ClassCastException when Importing a Spring Getting Started Project #370

Closed phoppe9966 closed 5 years ago

phoppe9966 commented 5 years ago

I use Eclipse 4.8 Photon with the Spring Tools 3 Addon 3.9.7.RELEASE installed. I try to Import a Spring Getting Started Project with:

File -> New -> Other -> Spring Boot -> Import Spring Getting Started Content

Then I get the following Error:

The selected wizard could not be started. Plug-in "org.springframework.ide.eclipse.boot.wizard" was unable to instantiate class "org.springframework.ide.eclipse.boot.wizard.guides.GSImportWizard". ClassCastException: attempting to castbundleresource://1621.fwk1437454238:7/javax/ws/rs/client/ClientBuilder.class to bundleresource://1614.fwk1437454238/javax/ws/rs/client/ClientBuilder.class

What can I do?

martinlippert commented 5 years ago

I guess this is a duplicate of this: https://github.com/spring-projects/sts4/issues/202

We just released 3.9.8, so please update to that release (or start with a fresh STS 3.9.8 distribution), that should solve the issue.

martinlippert commented 5 years ago

I should also mention that updating to STS 3.9.8 would also mean to update at least to Eclipse 2018-09 (Eclipse 4.9).

phoppe9966 commented 5 years ago

Thank you Martin. I will change to Eclipse 4.9 and install the new Spring Tools Plugin 3.9.8.