Synopsis Reference to a non-existing module.
Description It is an error to refer to a non-existing module. This can, for example, occur in a qualified name.

  • Check that the offending module name is spelled correctly.
  • Create a module of that name.
Examples Referring to the non-existing module M gives errors:
rascal>M::x = 3;
|stdin:///|(0,4,<1,0>,<1,4>): Undeclared module: M
|stdin:///|(0,4,<1,0>,<1,4>): Undeclared module: M
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