Additional errors for 42NAC, 50N26, 51N7A

modules/ROOT/content-nav.adoc

@@ -369,6 +369,7 @@
 **** xref:errors/gql-errors/42NA8.adoc[]
 **** xref:errors/gql-errors/42NA9.adoc[]
 **** xref:errors/gql-errors/42NAA.adoc[]
+**** xref:errors/gql-errors/42NAC.adoc[]
 **** xref:errors/gql-errors/42NFC.adoc[]
 **** xref:errors/gql-errors/42NFD.adoc[]
 **** xref:errors/gql-errors/42NFE.adoc[]
@@ -392,6 +393,7 @@
 **** xref:errors/gql-errors/50N20.adoc[]
 **** xref:errors/gql-errors/50N21.adoc[]
 **** xref:errors/gql-errors/50N23.adoc[]
+**** xref:errors/gql-errors/50N26.adoc[]
 **** xref:errors/gql-errors/50N42.adoc[]
 *** xref:errors/gql-errors/index.adoc#system-configuration-or-operation-exceptions[System configuration or operation exceptions]
 **** xref:errors/gql-errors/51N00.adoc[]
@@ -469,6 +471,7 @@
 **** xref:errors/gql-errors/51N74.adoc[]
 **** xref:errors/gql-errors/51N76.adoc[]
 **** xref:errors/gql-errors/51N77.adoc[]
+**** xref:errors/gql-errors/51N7A.adoc[]
 *** xref:errors/gql-errors/index.adoc#procedure-exceptions[Procedure exceptions]
 **** xref:errors/gql-errors/52N01.adoc[]
 **** xref:errors/gql-errors/52N02.adoc[]

modules/ROOT/pages/errors/gql-errors/42NAC.adoc

@@ -0,0 +1,28 @@
+= 42NAC
+
+== Status description
+error: syntax error or access rule violation  - invalid CREATE DATABASE statement. The backup metadata script contains an invalid or missing CREATE DATABASE statement. The metadata script must contain exactly one CREATE DATABASE statement and it must use the parameter $database.
+
+== Explanation
+When using the `existingMetadata: true` option to restore a database from a backup, the backup metadata script must contain exactly one CREATE DATABASE statement. This statement must use the parameter `$database` to specify the name of the database being restored. If the metadata script is missing this statement or contains an invalid statement, the CREATE DATABASE operation will fail with this error.
+
+== Example scenario
+For example, try to create a database with using the following command:
+
+[source,cypher]
+----
+CREATE DATABASE `$databaseString` OPTIONS {existingMetadata:'use', seedUri:'$uri', existingData:'use'}
+----
+
+If the backup at `$uri` is missing the required CREATE DATABASE statement, an error will be thrown with GQLSTATUS 42NAC.
+
+== Possible solutions
+
+To resolve this issue, use another backup with a valid metadata script. 
+
+ifndef::backend-pdf[]
+[discrete.glossary]
+== Glossary
+
+include::partial$glossary.adoc[]
+endif::[]

modules/ROOT/pages/errors/gql-errors/50N26.adoc

@@ -0,0 +1,28 @@
+= 50N26
+
+== Status description
+error: general processing exception - invalid backup metadata script. The backup metadata script contains invalid syntax.
+
+== Explanation
+When using the `existingMetadata: true` option to restore a database from a backup, the backup metadata script must contain valid Cypher statements. If the metadata script contains invalid syntax, the restore operation will fail with this error.
+
+== Example scenario
+For example, try to create a database with using the following command:
+
+[source,cypher]
+----
+CREATE DATABASE `$databaseString` OPTIONS {existingMetadata:'use', seedUri:'$uri', existingData:'use'}
+----
+
+If the backup at `$uri` constains invalid Cypher syntax in its metadata script, an error will be thrown with GQLSTATUS 50N26.
+
+== Possible solutions
+
+To resolve this issue, use another backup with a valid metadata script. 
+
+ifndef::backend-pdf[]
+[discrete.glossary]
+== Glossary
+
+include::partial$glossary.adoc[]
+endif::[]

modules/ROOT/pages/errors/gql-errors/51N7A.adoc

@@ -0,0 +1,26 @@
+= 51N7A
+
+== Status description
+error: system configuration or operation exception - no admin user candidate. No admin user candidate could be found. Please use `neo4j-admin dbms set-default-admin` to select a valid admin.
+
+== Explanation
+When initialsing the Neo4j DBMS for the first time, the system will attempt to determine a default admin user. This user is required to perform administrative tasks on the database. If no valid admin user candidate can be found, the system will throw this error.
+
+== Example scenario
+For example, before the database starts up for the first time, execute the following command to set a default admin user that does not exist:
+
+[source]
+----
+neo4j-admin dbms set-default-admin user-that-does-not-exist
+----
+
+== Possible solutions
+
+To resolve this issue, run `neo4j-admin dbms set-default-admin` again with a user that does exist in the system.
+
+ifndef::backend-pdf[]
+[discrete.glossary]
+== Glossary
+
+include::partial$glossary.adoc[]
+endif::[]

modules/ROOT/pages/errors/gql-errors/index.adoc

@@ -1508,6 +1508,10 @@ Status description:: error: syntax error or access rule violation - system datab
 
 Status description:: error: syntax error or access rule violation - incorrectly formatted graph reference. Incorrectly formatted graph reference `{ <<input>> }`. Expected a single quoted or unquoted identifier. Separate name parts should not be quoted individually.
 
+=== xref:errors/gql-errors/42NAC.adoc[42NAC]
+
+Status description:: error: syntax error or access rule violation  - invalid CREATE DATABASE statement. The backup metadata script contains an invalid or missing CREATE DATABASE statement. The metadata script must contain exactly one CREATE DATABASE statement and it must use the parameter $database.
+
 === xref:errors/gql-errors/42NFC.adoc[42NFC]
 
 Status description:: error: syntax error or access rule violation - auth info validation error. Authentication and/or authorization could not be validated. See security logs for details.
@@ -1602,6 +1606,10 @@ Status description:: error: general processing exception - no such schema descri
 
 Status description:: error: general processing exception - transaction retry aborted. Transaction retry aborted after `{ <<count>> }` attempts. Retry timed out with a maximum retry duration of `{ <<timeAmount>> }` `{ <<timeUnit>> }`.
 
+==== xref:errors/gql-errors/50N26.adoc[50N26]
+
+Status description:: error: general processing exception - invalid backup metadata script. The backup metadata script contains invalid syntax.
+
 === xref:errors/gql-errors/50N42.adoc[50N42]
 
 Status description:: error: general processing exception - unexpected error. Unexpected error has occurred. See debug log for details.
@@ -1918,6 +1926,9 @@ Status description:: error: system configuration or operation exception - upgrad
 
 Status description:: error: system configuration or operation exception - not supported in this store format. `{ <<feat>> }` is not supported in `{ <<storeFormat>> }` store format.
 
+=== xref:errors/gql-errors/51N7A.adoc[51N7A]
+
+Status description:: error: system configuration or operation exception - no admin user candidate. No admin user candidate could be found. Please use `neo4j-admin dbms set-default-admin` to select a valid admin.
 
 [[procedure-exceptions]]
 == Procedure exceptions