Error Messages

• "bad block size: % in %."
  The indicated block size in the indicated symmetry list (shown in internal format) is not an integer.
• "bad connection %."
  The object given to setcon() does not have an itype of connection.
• "bad index % for %"
  This error may indicate an internal error in the system.
• "bad indextype element: %"
  The indicated element from an indextype list is either not an integer, or does not correspond to a defined type.
• "bad input: % (from %)."
  The input to the indicated routine is not a valid indexed object or name.
• "bad metric: %."
  The metric used as input to either setmetric() or altmetric() is either does not have an itype of metric, or is not the covariant metric.
• "bad pointer: % in %"
  The indicated pointer of the independent symmetry list is either not an integer, or is not positive.
• "can't make spin matrices -- sorry."
  The spinmat() function only works at present for diagonal metrics.
• "cannot assign to %."
  The left-hand side of an indexed assignment is either not a single indexed object, or the index of that object indicates a differentiation operation.
• "cannot compute cov deriv of generic object: %."
  If this message appears the user has applied cov() to a generic name for which no target has as yet been created. Create the target object, then retry the operation.
• "% cannot be assigned."
  The indicated name is an indexed object and cannot have an algebraic value assigned to it.
• "cannot create conjugate %."
  The conjugate object for a spinor cannot be created because it already exists and cannot be removed (presumably it is kill-protected).
• "cannot create object: %"
  mkobj() cannot create the object because it either already exists and is kill-protected, or the name is a reserved symbol.
• "connection type % % does not exist."
  The connection object relating the two types of indices does not exist.
• "coord-indextype mis-match %, %."
  The length of the coordinate list (as given to coords()) is not the same length as indicated by the run of tensor indices.
• "description is not a string or atom: %"
  The describe() function will only accept strings or single atoms for use as a description of an indexed object.
• "dif op without an index: %."
  The user has terminated an index with a derivative operation, but no following index-element.
• "% does not have metric structure."
  The named indexed object given to metric() is either not of rank-2, or is not covariant.
• "empty index!"
  May indicate an internal error in the system.
• "environments do not match: %"
  
• "format not a string."
  
• "free index element % in %."
  
• "improper blocks for hermitian symmetry: %."
  
• "improper contraction: %, %"
  
• "improper line-element: %."
  
• "improper structure for hermitian symmetry: %."
  
• "inconsistent indices: %, %"
  
• "index % cannot be shared.(???)"
  
• "index % wrong length for %."
  
• "index without a name."
  
• "indices do not match ."
  Mixed cov and contra indices in expression

• "input name required (from %)"
  
• "Internal error: name not passed to mkrdr."
  This message indicates a failure in the system and should be reported to the authors along with a sample input and output. It may also reflect a flaw in REDTEN as compiled on the users' system.
• "internal error (continuing with no contraction symmetry)"
  
• "internal error."
  
• "internal error, blocks mis-matched (continuing)"
  
• "% invalid as affine connection."
  The optional second parameter to geodesic(), which is the name of the affine parameter to be used in building the geodesic equations, is not an id.
• "% invalid as index."
  The second argument to pdf() must be a valid object index, including the square brackets.
• "invalid index ops"
  
• "Invalid index ops: %
  
• "invalid indextype % for %."
  
• "invalid input: % % % '%' %."
  
• "invalid input: %."
  
• "invalid line element: %."
  
• "invalid pointers for hermitian symmetry: %."
  
• "invalid symmetry: %"
  
• "% is a singular matrix."
  This message indicates that the named rank-2 object is singular.
• "% is already in use."
  The name which the user is trying to make into an indexed object is already being used in some fashion. It either has dependencies, an algebraic value, has been entered in another expression, or is already indexed. This error only occurs is the switch mkobjsafe is on. The user can overide the error by immediately repeating the failed call to mkobj().
• "% is no longer a generic object."
  The named input to mkobj() was a generic object. In making the new object the generic properties have been lost. The user should not steal the generic object names.
• "% is not a vector."
  The second argument to lie() must be a rank-1 indexed object.
• "% is write-protected"
  This message means that the indicated object cannot have new components written to it, since it is protected. The user can remove the protection with protect() and try again.
• "LINES env not valid."
  The LINES environment variable is not an integer, or is negative.
• "metric % not simplified"
  
• "metric inverse % not simplified"
  
• "metric type % does not exist."
  
• "mis-matched index ops"
  
• "missing conjugate for % being created."
  
• "missing differential: %."
  
• "missing inverse: %."
  
• "missing tetrad member"
  
• "no such offspring for %"
  
• "non-atomic index element in % for %"
  
• "% not indexed (from %)."
  The indicated input to the indicated routine is not an indexed object.
• "% not of type coordinates."
  The indexed object used as the indeterminate in a df() command is not of itype coordinates. This object must either be the default coordinates (whose name is stored in mkcoords), or an object created by the user with a call to mkcoords().
• "object % must have two indices"
  
• "output % is protected"
  
• "overlapping blocks in %."
  
• "pointer out of order in %."
  
• "restricted indices invalid: % %"
  
• "subscript out of range: %"
  
• "symmetry out of order: %"
  
• "symmetry too long: %"
  
• "this shifted object does not exist: %"
  
• "too few pointers in %"
  
• "too many contraction indices: %, %"
  
• "too many indexed objects in arg: % %"
  
• "Update or remove derivatives after changing %."
  
• "unmatched coordinates: %, %."