Explanation of Error: db fails to start with Caused by: org.neo4j.token.api.NonUniqueTokenException: The PropertyKey NamedTokenMar 18, 2024Knowledge
Article DetailsDetailsHelp Details When attempting to start Neo4j and one is running a Neo4j 4.0.x release and where x is ⇐2 the following error may be encountered and logged in logs\debg.log Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.internal.recordstorage.RecordStorageEngine$2@783ae61f' failed to initialize. Please see the attached cause exception "The PropertyKey NamedToken[name:prop1, id:321, internal:false] is not unique, it existed as null.". at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:426) at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:66) at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:102) at org.neo4j.kernel.database.Database.start(Database.java:462) ... 13 more Caused by: org.neo4j.token.api.NonUniqueTokenException: The PropertyKey NamedToken[name:prop1, id:321, internal:false] is not unique, it existed as null. This error has only been reported if your environment was previously on a Neo4j 3.5.x release and then later upgraded to 4.0.x, where x is ⇐2. This error is addressed in Neo4j 4.0.3 forward. If you have encountered this error the workaround is to utilize neo4j-admin copy which is an offline activity and will read a database and create a new copy of the database without the errors in the underlying data/database/* files. InformationTitleExplanation of Error: db fails to start with Caused by: org.neo4j.token.api.NonUniqueTokenException: The PropertyKey NamedTokenArticle Created Date3/15/2024, 10:56 PMURL Name360047273174-Explanation-of-Error-db-fails-to-start-with-Caused-by-org-neo4j-token-api-NonUniqueTokenException-The-PropertyKey-NamedTokenLast Modified Date3/18/2024, 10:40 AM