.classpath file is missing when cloning a repository

[Eyvind Almqvist]

We set up a main repository on Bitbucket. Someone in the team then made an almost empty Eclipse project and pushed it to the main repository. The others in the team then cloned the main repository.  The cloning works for everyone except one member of the team, who has a Linux PC. The .classpath file is missing in his cloned project. It is not possible to run the project, the error message is 

"The project cannot be built until the build path errors are resolved. Unbound classpath container: 'JRE System Library [Java SE-1.8]' in project 'FiveFive'"

I tried to clone the project on my PC with the team members login and username. It works without problems on my PC. What could be the cause of this issue and how can I solve it? Could it be because all of the other team members has Windows and the guy with the missing classpath has Linux?
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