Caché Error Reference
System Error Messages
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This document contains the following error messages:

General System Error Messages
The following table lists the Caché system error messages. If a system process terminates with an error, it reports the error message via the operator console facility.
System Error Messages - A to E
Error Code Description
<ALARM> An internal timer for user events has expired.
<ARRAY DIMENSION> The expected dimensionality of the variable or argument is incorrect.
<BAD IMPLICIT> Invalid implicit data conversion requested.
<BLOCKNUMBER> A reference has been made to a block outside the range of the database file.
<_CALLBACK SYNTAX> (Note underscore in error code name.) A name has been specified beginning with an underscore character followed by a letter.
<CANNOT GET THIS PROPERTY> There has been an attempt to get a property of a class for which getting this property is invalid.
<CANNOT SET THIS PROPERTY> There has been an attempt to set a property of a class for which setting this property is invalid.
<CLASS COMPILING> There has been an attempt to instantiate a class or invoke a class method of a class which is currently being recompiled on the local system.
<CLASS DESCRIPTOR> There has been an attempt to run a routine which is actually a class descriptor.
<CLASS DOES NOT EXIST> A reference has been made to a nonexistent class. For further details, refer to $ZERROR.
<CLASS EDITED> There has been an attempt to use an object hosted on the local system whose class has been recompiled from a remote system since the object was created.
<CLASS RECOMPILED> There has been an attempt to use an object hosted on the local system whose class has been recompiled on the local system since the object was created.
<CLASS TOO BIG TO LOAD> A class cannot be used because its class descriptor is too large to fit into a routine buffer.
<CLASS TOO BIG TO SAVE> A class cannot be created because its class descriptor is too large to fit into a routine buffer.
<CLIENT-SERVER MISMATCH> A network request cannot be processed due to incompatibility between the client and server.
<CLUSTERFAIL> A cluster member has failed during global buffer lock processing.
<COLLATECHANGE> There was an attempt to change the collation algorithm while subscripted local variables are defined.
<COLLATEMISMATCH> Subscript level mapping failed due to misconfigured collation type.
<COLLATION NOT SUPPORTED> A reference has been made to a global whose collation type is not supported on the current system.
<COMMAND> A command has been used improperly in this context, such as an argumentless GoTo in a routine. For further details, refer to $ZERROR.
<COMMITFAIL> Received during a COMMIT when Caché receives an error while processing a TCommit. This error means that Caché is not sure whether one or more remote machines actually processed the commit.
<COMPLEX PATTERN> The combination of pattern and input string generate too many possible matches to manage.
<CONFLICTING BLOCK NUMBERS> There has been an attempt to reserve a block that was already reserved.
<CORRUPT OBJECT> An internal object system error occurred. Contact InterSystems Worldwide Response Center if this error occurs.
<CORRUPT VOLUME SET> The volume set is corrupted. Usually, this means the label on the volume set is wrong. Use the LABEL utility to correct it.
<CP NOT STARTED> One of the major processes required for proper operation of the system failed to start. This is potentially a very serious system error; notify your system manager.
<DATABASE MAP LABEL> There is an invalid label in a database map block.
<DATABASE> Caché has detected degradation in this database (this is potentially a very serious system error; notify your system manager).
<DDP JOB OVERFLOW> A Cache job's internal job number is greater than 1544 and it is attempting to access a DSM database using DDP. The job number is too large for DDP to handle.
<DIRECTORY> There is no such directory on the target system, no Caché database, the Caché database is not mounted, or the database is locked by another configuration. For further details, refer to $ZERROR.
<DISCONNECT> A TCP disconnect has been detected while a long-duration request is being processed.
<DISKHARD> Caché has encountered an uncorrectable disk hardware error (this may also be the result of a database problem; notify your system manager).
<DIVIDE> There has been an attempt to divide by zero.
<DOMAINSPACERETRY> Repeated attempts to contact the domain space master have failed.
<DSCON> There has been an attempt to read from a disconnected terminal.
<DSKFUL> An attempt to write data to a disk file failed because the file reached its maximum size; some of the data was written but not all.
<DUPLICATEARG> There has been an attempt use $SORTBEGIN with an ancestor or descendent of an already-defined $SORTBEGIN global.
<DYNAMIC LIBRARY LOAD> An error has occurred during an attempt to load a dynamic library via callout. See cconsole.log for additional information.
<ECODETRAP> A user-generated software trap was generated by setting the $ECODE system variable to a non-null string value.
<ENDOFFILE> There has been an attempt to read past the end-of-file marker of a sequential file.
<ERRTRAP> There are insufficient system resources remaining to run an error trap procedure.
<EXTERNAL INTERRUPT> Another process has attempted to interrupt this process.
System Error Messages - F to J
Error Code Description
<FILEFULL> Caché attempted to allocate a disk block for more global data or routine storage, but the attempt failed because the Caché database is full and could not be expanded.
<FRAMESTACK> The routine has too many nested calls to Do, For, Xecute, New, or user-written functions. For further details, refer to $ZERROR.
<FUNCTION> The specified function does not exist or is being used improperly.
<GARBAGE COLLECTOR FAILED> The one of the processes that reclaims space in the database has failed. This is potentially a very serious system error; notify your system manager.
<HALTED> An internal error message.
<ILLEGAL VALUE> There has been an attempt to use a negative value where one is not allowed, such as, for $X or $Y.
<INSUFFICIENT CLASS MEMORY> A class cannot be used because Caché has run out of shared memory.
<INTERNAL OBJECT ERROR> An internal object system error. Contact InterSystems Worldwide Response Center if this error occurs.
<INTERRUPT> A user has interrupted the routine. (In many implementations, the user has pressed CTRL-C.)
<INVALID ARGUMENT> There is an invalid argument prototype in the zfentry specification of a callout function.
<INVALID BIT STRING> The bit string used in a bit string operation is not valid.
<INVALID CLASS> There has been an attempt to use a class that has been corrupted. Recompile the class and try again.
<INVALID FILE VARIABLE> A file variable was expected but none was supplied.
<INVALID GLOBAL REFERENCE> A global reference failed length validation.
<INVALID OREF> No object with the specified OREF is currently in memory.
<INVALID SELECT LIST> A SELECT list was expected but not supplied.
<INVALID TYPE> An OREF has been used where not allowed.
<Java Exception> An exception occurred during a call into the Java runtime environment.
<Java VM not loaded> No Java Virtual Machine is available.
System Error Messages - K to O
Error Code Description
<LABELREDEF> A routine has a duplicate label within it. Labels must be unique within the routine.
<LANGUAGE MISMATCH> While compiling and inserting code into an existing routine, the current language mode differs from that of the routine.
<LICENSE ALLOCATION EXCEEDED> There has been an attempt to exceed the operational user limit imposed on this instance with the $SYSTEM.License.SetUserLimit(InstanceUserLimit) API.
<LICENSE LIMIT EXCEEDED> There has been an attempt to exceed the number of users allowed by the active Cache license, either on the current Cache instance or in total among the set of instances sharing the license.
<LICENSE SERVER UNAVAILABLE> The license server is unreachable at the moment. Check your network.
<LIST> An improperly-formed list has been used.
<LOCKLOST> Some locks once owned by this job have been reset.
<LOGIN INHIBITED> The system is initializing. No users are permitted to begin work.
<MAGTAPE> A magnetic tape operation encountered an error. Check $ZA.
<MAXARRAY> There are too many subscripts at this level.
<MAXINCREMENT> An attempt to $INCREMENT a variable did not change its value.
<MAX LOCKS> The maximum lock count (32766) has been exceeded.
<MAXNUMBER> An arithmetic operation has produced a number larger than the implementation allows.
<MAX ROUTINES> There are no slots available to allocate to invoke a new routine.
<MAXSCOPE> There has been an attempt to issue more than 31 levels of New commands.
<MAXSTRING> There has been an attempt to specify or create a data string longer than the implementation allows (32,767 characters).
<METHOD DOES NOT EXIST> The method does not exist in the specified class or the class of the specified object. For further details, refer to $ZERROR.
<METHOD NOT SUPPORTED> The method exists, but is not supported in this context. For example, a nested call to %ToJSON() where the referenced object is not a dynamic object or array.
<MNEMONICSPACE> There has been an attempt to use control mnemonics for a device with no associated mnemonic space.
<MV WRAPUP> An internal error occurred during finalization of the MultiValue shell.
<NAKED> There has been an attempt to use a naked global reference when the naked state was undefined.
<NAME> There is invalid syntax in a name.
<NAMEADD> There has been an overflow of device name table, resulting from the Open command.
<NAMESPACE> The specified namespace is undefined or not active.
<NETFORMAT> There has been an error in a network message. The remote system found fault with the format of a request. Call your support center to resolve this serious error.
<NETGLOREF> There has been an error in a network message. The remote system found fault with the format of a request. Call your support center to resolve this serious error. (This can also occur if a remote global is a string-collated or 7-bit encoded global on a DSM system.)
<NETJOBMAX> Another high-speed networking process cannot be added. This is usually due to an insufficient number of global buffers.
<NETLOCK> A ObjectScript Lock command has been attempted to a remote computer whose remote system index is greater than 31. To correct, redefine your network configuration to include fewer than 32 remote computers.
<NETRETRY> An operation failed at the network level in a way that could be immediately retried.
<NETSRVFAIL> During a transaction COMMIT or a Set, Kill, ZKill command, a client system has detected that one of the servers involved in the transaction has restarted while the transaction was open. Caché
<NETVERSION> The client and server systems are running different DDP versions, which cannot accept each other's message format.
<NETWORK DATA UPDATE FAILED - BLOCKNUMBER> Updates sent over the network were lost because the remote system attempted to refer to a block that is outside the bounds of the database; notify your system manager.
<NETWORK DATA UPDATE FAILED - CLIENT-SERVER MISMATCH> Updates sent over the network were lost because a network request could not be processed due to incompatibility between the client and server.
<NETWORK DATA UPDATE FAILED - CLUSTERFAILED> Updates sent over the network were lost because a cluster member failed during global buffer lock processing.
<NETWORK DATA UPDATE FAILED - DATABASE> Updates sent over the network were lost because Caché on the server has detected degradation in this database. This is potentially a very serious system error; notify your system manager.
<NETWORK DATA UPDATE FAILED - DIRECTORY> Updates sent over the network were lost because the referenced directory is not on the remote system.
<NETWORK DATA UPDATE FAILED - DISKHARD> Updates sent over the network were lost because Caché on the server has encountered an uncorrectable disk hardware error. This may also be the result of a database problem; notify your system manager.
<NETWORK DATA UPDATE FAILED - FILEFULL> In networked operation, a <FILEFULL> error occurred.
<NETWORK DATA UPDATE FAILED - MAXSTRING> There has been an attempt to specify or create a data string longer than the implementation allows (32,767 characters).
<NETWORK DATA UPDATE FAILED - NETFORMAT> Updates sent over the network were lost because the remote system found fault with the format of a request. Call your support center to resolve this serious error.
<NETWORK DATA UPDATE FAILED - NETGLOREF> Updates sent over the network were lost because the remote system found fault with the format of a request. Call your support center to resolve this serious error.
<NETWORK DATA UPDATE FAILED - NETVERSION> The client and server systems are running different ECP versions, which cannot accept each other's message format.
<NETWORK DATA UPDATE FAILED - PROTECT> In networked operation, a <PROTECT> error occurred.
<NETWORK DATA UPDATE FAILED - STRINGSTACK> In networked operation, a <STRINGSTACK> error occurred.
<NETWORK DATA UPDATE FAILED - STRMISMATCH> Updates sent over the network were lost because there has been an internal error handling big strings over the network.
<NETWORK DATA UPDATE FAILED - SUBSCRIPT> In networked operation, a <SUBSCRIPT> error occurred.
<NETWORK DATA UPDATE FAILED - SYSTEM> Updates sent over the network were lost because a <SYSTEM> error occurred on the server. Either there has been an attempt to do something not allowed by the operating system or ECP. Or there is an error condition in Caché, in which case you should notify your support center with as much information as possible.
<NETWORK DATA UPDATE FAILED - WIDECHAR> In networked operation, a <WIDECHAR> error occurred.
<NETWORK DATA UPDATE FAILED> Updates sent over the network were lost. The reasons for the loss are undetermined. Call your support center to resolve this serious error.
<NETWORK UNLICENSED> The application has attempted to access a remote directory, but there is no license for Caché networking.
<NETWORK> Typically, one of the following has occurred: the network timeout has expired; the local port has gone down; the node being accessed is down; or the remote server connection is disabled.
<NLS TABLE> There has been an attempt to perform NLS translation using data that is not proper for the conversion table.
<NO CURRENT OBJECT> There is no current object.
<NO MAILBOX> A resource needed for interprocess communication is unavailable.
<NO SOURCE> A source line is missing from a routine in the routine source global.
<NODEV> There has been an attempt to a write-only device, or write to a read-only device, with interjob communication.
<NOJOB> There has been an attempt to specify an incorrect process number in a View command, or an error occurred in a Job command.
<NOLINE> There has been an attempt to refer to a nonexistent routine line.
<NORESTART> The application or function cannot be restarted.
<NOROUTINE> There has been an attempt to refer to a nonexistent routine. For further details, refer to $ZERROR.
<NOSYS> There has been an attempt to make an extended or implicit reference to a remote system that is not reachable in the current network configuration. The remote system is not in the tables, or is a DSM system that has not advertised itself.
<NOT PRIMARY VOLUME> Volume sequence is not 1; the volume label disagrees with the function of the volume.
<NOTOPEN> The device cannot be opened, or there has been an attempt to use an unopened device.
<NOTSY> Notify of a <SYSTEM> error. If a client sent a network request to a remote host via DDP, the server returns this error to the client if a remote host is shut down.
<NULL VALUE> A null string appears where one is not allowed.
<OUT OF $ZF HEAP SPACE> The $ZF heap lacks the necessary available space to support one of the input or output parameters being passed between Caché and the external program invoked via the $ZF function.
System Error Messages - P to T
Error Code Description
<PARAMETER> The number of parameters passed to a labeled line by a user-written function reference or a Do command exceeded the number of formal parameters declared for the labeled line.
<PRIVATE METHOD> There has been an attempt to invoke a private and, therefore, unavailable method.
<PRIVATE PROPERTY> There has been an attempt to access a private and, therefore, unavailable property.
<PROPERTY DOES NOT EXIST> The property is not part of the class of the specified object. For further details, refer to $ZERROR.
<PROTECT> There has been an attempt to do something with a global (Read, Write, or Kill) for which there was no authorization; or there has been an attempt to use a View command which modifies memory, $View, or $ZU(49); or there has been an attempt to use a nonexistent directory, possibly with extended global syntax, or some other protection violation occurred. For further details, refer to $ZERROR.
<RANGE> A bit or list position is out of allowable range.
<READ> The record cannot be read.
<RECOMPILE> A routine has been compiled under a different version of Caché or an InterSystems legacy product. It cannot be loaded onto this system with %RIMF, which transfers object code. Transfer it as source code (using %RO and %RI) and then recompile it.
<REGULAR EXPRESSION> There has been an error in the syntax of a regular expression (an invalid or ambiguous regular expression string, or a regular expression that specifies an unimplemented feature).
<REMOTE CLASS EDITED> There has been an attempt to use an object hosted on a remote system whose class has been recompiled from a remote system since the object was created.
<REMOTE CLASS RECOMPILED> There has been an attempt to use an object hosted on a remote system whose class has been recompiled from the local system since the object was created.
<RESJOB> A process was intentionally terminated.
<ROLLFAIL> Caché has encountered an error processing a call to TRollBack. This error means that Caché is not sure whether one or more remote machines actually processed the rollback.
<ROUTINELOAD> An error occurred in loading a routine. The routine indicates object code corruption and may lead to database degradation. Contact your system manager.
<SELECT> A $Select function contains no true condition.
<SHARED MEM HEAP> The request for shared memory cannot be satisfied. To avoid this error, the system could be reconfigured with more heap space allocated.
<SLMSPAN> There has been an attempt to kill a global across a subscript level mapping boundary.
<STACK> The argument stack is out of room or contains an incorrect type.
<STORE> The partition space for the process is exhausted. The process needs a block larger than the largest contiguous block of available space in the partition. Even though $S may show available space, it is fragmented. Reduce the number or size of the local variables. Utilities may not be available until some variables are deleted in order to free up space. Issuing ZLOAD for too large a routine from a tape or sequential file can also cause this error.
<STRINGSTACK> An expression is too long, there are too many expressions in an argument for a single command, or an expression contains many very long strings. Simplify the expression.
<STRMISMATCH> There has been an internal error handling big strings over the network.
<SUBSCRIPT> A subscript has an illegal value or a global reference is too long. For further details, refer to $ZERROR. For more information on maximum length of global references, see the section Determining the Maximum Length of a Subscript in the “Global Structure” chapter of Using Caché Globals.
<SWIZZLE FAIL> You have opened an oref and then attempted to swizzle in another related object which could not be referenced. This may be due to the deletion of the related object from disk or another process holding a lock on the related object.
<SYNTAX> There is a syntax error (an error in the formation of a language construct, such as a misspelled or missing keyword).
<SYSTEM> Either there has been an attempt to do something not allowed by the operating system, or there is an error condition in Caché, in which case you should notify your support center with as much information as possible.
<TCPWRITE> A timeout has occurred on a TCP write operation.
<TERMINATOR> There has been an attempt to read on a terminal or device in image mode with no terminator and it was not a fixed-length read.
<THROW> A THROW has been issued, but no CATCH expression has been found on the call stack. For further details, refer to $ZERROR.
<TOO MANY CLASSES> This process has attempted to access too many active classes.
<TOO MANY LONG STRINGS> Too many intermediate long strings are present on the string stack.
<TOO MANY OREFS> This process has attempted to create too many simultaneously open objects.
<TOO MANY USERS OF CLASS> Too many processes are trying to use a particular class simultaneously (more than 65561).
<TOO MANY USERS> Too many users are attempting to use the system at the same time.
<TOOMANYFILES> Caché is unable to open a file because the underlying operating system has run out of file descriptors.
<TRANSACTION LEVEL> The application has too many nested transactions pending.
<TRANSLATE> Caché has read an input value for which it has no translation value. It therefore carries out the Default Action defined on the Translation tab of the Caché NLS utility.
<TRANSLOST> A distributed transaction initiated by this job has been asynchronously rolled back by the server.
System Error Messages - U to Z
Error Code Description
<UNDEFINED> There has been a reference to an undefined variable. For further details, refer to $ZERROR.
<UNIMPLEMENTED> There has been an attempt to use either an unimplemented function or an unimplemented argument of a legitimate command or function.
<UNIMPLEMENTED DOUBLE> The use of a floating-point number is not supported in this context.
<UNKNOWN ERROR> An unexpected error has occurred. Call your support center to resolve this serious error.
<UNLICENSED> The available license key does not permit the requested operation, for example, trying to create an encrypted database with an entry license.
<VALUE OUT OF RANGE> The value is outside the maximum or minimum permissible range.
<VOLUME IS NOT FORMATTED> The volume does not have the required formatting.
<VOLUME SET ALREADY CREATED> There has been an attempt to format a Caché database that is already formatted.
<WIDE CHAR> Caché read a multibyte character where a 1-byte character was expected.
<WRITE DEMON FAILED> The write daemon is unable to continue. Call your support center to resolve this serious error.
<WRITE> The record cannot be written.
<WRONG NAMESPACE> There is an attempt to load the class from a private implied namespace.
<ZDDIF> A DATEDIFF operation was attempted with an invalid date.
<ZTRAP> There has been an attempt to issue a ZTrap command with no argument.
Shadowing Error Messages
In addition to the general system errors that shadowing can generate, there are also the following shadowing-specific error codes:
Shadowing Error Messages
Error Code Description
<ZFILE> There has been a file-related problem, such as that a file cannot be found or cannot be opened; consult the error log for more details.
<ZMISC> An error has occurred of a different type than the others listed in this table. More detail follows the <ZMISC> code itself.
<ZOPEN> There has been an error opening a device with TCP; the database server being shadowed is down.
<ZREAD> There has been a failure to read from the database server that is being shadowed, indicating that the server is disconnected or not currently running.
<ZSTOP> Shadowing has been stopped by system shutdown or the user.
M Programming Language Errors
ObjectScript is a superset of the ISO 11756-1999 standard M programming language. The ISO 11756-1999 standard is identical to the former ANSI-standard M programming language.
These errors are returned to the $ECODE special variable.
ISO 11756-1999 Standard M Error Messages
Message Text Meaning
M1 Naked indicator undefined.
M2 Invalid $FNUMBER code string combination.
M3 $RANDOM argument less than 1.
M4 No true condition in $SELECT.
M5 Line reference less than 0 (zero).
M6 Undefined local variable.
M7 Undefined global variable.
M8 Undefined special variable.
M9 Divide by zero.
M10 Invalid pattern match range.
M11 No parameters passed.
M12 Invalid line reference (negative offset).
M13 Invalid line reference (line not found).
M14 Line level not one (1). (DO command.)
M15 Undefined index variable. (FOR command.)
M16 QUIT with an argument not allowed.
M17 QUIT with an argument required.
M18 Fixed-length READ not greater than 0 (zero).
M19 Cannot merge a tree or subtree into itself.
M20 Line must have a formal parameter list.
M21 Formal parameter list name duplication.
M22 SET or KILL to ^$GLOBAL structured system variable name (SSVN) when data in global.
M23 SET or KILL to ^$JOB structured system variable name (SSVN) for nonexistent job number.
M24 Change to collation algorithm while subscripted local variables defined.
M26 Nonexistent environment (nonexistent namespace).
M27 Attempt to roll back a transaction that is not restartable.
M28 Mathematical function, parameter out of range.
M29 SET or KILL on structured system variable name (SSVN) not allowed by implementation.
M30 Reference to global variable with different collating sequence within a collating algorithm.
M31 Device control mnemonic expression used for a device without a mnemonic space being selected.
M32 Device control mnemonic used in user-defined mnemonic space which has no associated line.
M33 SET or KILL to ^$ROUTINE when the specified routine exists.
M35 Device does not support mnemonic spaces. (OPEN or USE command.)
M36 Incompatible mnemonic spaces. (OPEN or USE command.)
M37 READ from device identified by null string.
M38 Invalid structured system variable name (SSVN) subscript.
M39 Invalid $NAME argument.
M40 Call by reference in the actual parameter list in JOB command.
M41 Invalid LOCK argument within a transaction.
M42 Invalid QUIT within a transaction.
M43 Invalid range value ($X or $Y). (SET command.)
M44 Invalid command outside a transaction.
M45 Invalid GOTO reference.
M57 A label is defined more than once in a routine.
M58 Too few formal parameters.