How to compile flowable source code with eclipse

No war packages have been downloaded. To compile the source code, download the flowable-engine-flowable-6.4.0.zip, directory structure from github as follows:

then eclipse-import-existing maven is imported, and then it all turns red, and then I don"t know how to do it, how to run?

Sep.01,2021

help. SOS .

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e4bc5e-59ead.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e4bc5e-59ead.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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