diff --git a/src/stratis_cli/_error_reporting.py b/src/stratis_cli/_error_reporting.py
index a70c8e44b..c89a5ed14 100644
--- a/src/stratis_cli/_error_reporting.py
+++ b/src/stratis_cli/_error_reporting.py
@@ -36,7 +36,6 @@
 from ._actions import BLOCKDEV_INTERFACE, FILESYSTEM_INTERFACE, POOL_INTERFACE
 from ._errors import (
     StratisCliActionError,
-    StratisCliAggregateError,
     StratisCliEngineError,
     StratisCliIncoherenceError,
     StratisCliParserError,
@@ -205,12 +204,6 @@ def _interpret_errors_1(
     if isinstance(error, StratisCliUserError):
         return f"It appears that you issued an unintended command: {error}"
 
-    # The only situation in which an AggregateError can be raised is if there
-    # is a problem activating devcies, but the sim engine does not simulate
-    # activation of locked devices.
-    if isinstance(error, StratisCliAggregateError):  # pragma: no cover
-        return f"An iterative command generated one or more errors: {error}"
-
     if isinstance(error, StratisCliStratisdVersionError):
         return (
             f"{error}. stratis can execute only the subset of its "
diff --git a/src/stratis_cli/_errors.py b/src/stratis_cli/_errors.py
index 88357b372..677e7009d 100644
--- a/src/stratis_cli/_errors.py
+++ b/src/stratis_cli/_errors.py
@@ -15,9 +15,6 @@
 Error heirarchy for stratis cli.
 """
 
-# isort: STDLIB
-import os
-
 from ._stratisd_constants import (
     BLOCK_DEV_TIER_TO_NAME,
     STRATISD_ERROR_TO_NAME,
@@ -428,32 +425,6 @@ def __str__(self):
         )
 
 
-class StratisCliAggregateError(StratisCliRuntimeError):
-    """
-    Raised when multiple errors have occured in a looping operation.
-    """
-
-    def __init__(self, operation, type_, errors):
-        """
-        Initializer.
-        :param str operation: the looping operation that failed.
-        :param str type_: the type of the resource for which the operation failed.
-        :param errors: list of all errors that occurred during the looping operation.
-        :type errors: list of Exception
-        """
-        # pylint: disable=super-init-not-called
-        self.operation = operation
-        self.type = type_
-        self.errors = errors
-
-    def __str__(self):
-        return (
-            f"The operation '{self.operation}' on a resource of type {self.type} failed. "
-            f"The following errors occurred:\n"
-            f"{os.linesep.join([str(error) for error in self.errors])}"
-        )
-
-
 class StratisCliPartialFailureError(StratisCliRuntimeError):
     """
     A non-fatal error to be reported at the end as part of a StratisCliAggregateError.
diff --git a/tests/whitebox/unittest/test_error_fmt.py b/tests/whitebox/unittest/test_error_fmt.py
index bdbe94a06..0aec1ff55 100644
--- a/tests/whitebox/unittest/test_error_fmt.py
+++ b/tests/whitebox/unittest/test_error_fmt.py
@@ -20,8 +20,6 @@
 
 # isort: LOCAL
 from stratis_cli._errors import (
-    StratisCliAggregateError,
-    StratisCliEngineError,
     StratisCliGenerationError,
     StratisCliIncoherenceError,
     StratisCliPartialFailureError,
@@ -59,16 +57,6 @@ def test_stratis_cli_generation_error_fmt(self):
         """
         self._string_not_empty(StratisCliGenerationError("Error"))
 
-    def test_stratis_cli_aggregate_error_fmt(self):
-        """
-        Test 'StratisCliAggregateError'
-        """
-        self._string_not_empty(
-            StratisCliAggregateError(
-                "do lots of things", "toy", [StratisCliEngineError(1, "bad")]
-            )
-        )
-
     def test_stratis_cli_partial_failure_error(self):
         """
         Test 'StratisCliPartialFailureError'