Add another type check

nifty5/operators/value_inserter.py

@@ -44,6 +44,8 @@ class ValueInserter(LinearOperator):
                 for i, n in enumerate(index)
         ]):
             raise TypeError
+        if not len(index) == len(self.target.shape):
+            raise ValueError
         self._index = index
         self._capability = self.TIMES | self.ADJOINT_TIMES
         # Check whether index is in bounds