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It is best not to put Tomcat under OPT, or do not set the permissions to read-only, LZ encountered the problem is installed in eclipse after a new project to report a mistake, and then to create a new project, it is not the choice of this tomcat, tried several times also not, The final guess is the permission problem, go to opt under Tomcat looked at the permission, is only read, and then I thought, decompression this is not difficult, on the volume of a folder under the decompression, and then configure the project, and then good, you can use, and now there is no test run Java EE, and so on.
Ubuntu install eclipse Tomcat reference URL