diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/i18n_error.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_parse_error.ts
similarity index 84%
rename from packages/localize/src/tools/src/translate/translation_files/translation_parsers/i18n_error.ts
rename to packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_parse_error.ts
index dc5c7d378b..beec87a8d2 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/i18n_error.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_parse_error.ts
@@ -8,10 +8,9 @@
 import {ParseErrorLevel, ParseSourceSpan} from '@angular/compiler';
 
 /**
- * Instances of this class are thrown when there is an error in the source code that is being
- * translated.
+ * This error is thrown when there is a problem parsing a translation file.
  */
-export class I18nError extends Error {
+export class TranslationParseError extends Error {
   constructor(
       public span: ParseSourceSpan, public msg: string,
       public level: ParseErrorLevel = ParseErrorLevel.ERROR) {
diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_utils.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_utils.ts
index 9d707f0886..5daafe701b 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_utils.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/translation_utils.ts
@@ -6,12 +6,13 @@
  * found in the LICENSE file at https://angular.io/license
  */
 import {Element, LexerRange, Node, XmlParser} from '@angular/compiler';
-import {I18nError} from './i18n_error';
+import {TranslationParseError} from './translation_parse_error';
 
 export function getAttrOrThrow(element: Element, attrName: string): string {
   const attrValue = getAttribute(element, attrName);
   if (attrValue === undefined) {
-    throw new I18nError(element.sourceSpan, `Missing required "${attrName}" attribute:`);
+    throw new TranslationParseError(
+        element.sourceSpan, `Missing required "${attrName}" attribute:`);
   }
   return attrValue;
 }
diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_message_serializer.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_message_serializer.ts
index 5b9e9fb369..2824c78081 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_message_serializer.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_message_serializer.ts
@@ -8,7 +8,7 @@
 import {Element, Expansion, ExpansionCase, Node, Text, visitAll} from '@angular/compiler';
 import {MessageRenderer} from '../../../message_renderers/message_renderer';
 import {BaseVisitor} from '../base_visitor';
-import {I18nError} from '../i18n_error';
+import {TranslationParseError} from '../translation_parse_error';
 import {getAttrOrThrow} from '../translation_utils';
 
 const INLINE_ELEMENTS = ['g', 'bx', 'ex', 'bpt', 'ept', 'ph', 'it', 'mrk'];
@@ -29,7 +29,7 @@ export class Xliff1MessageSerializer<T> extends BaseVisitor {
     } else if (INLINE_ELEMENTS.indexOf(element.name) !== -1) {
       visitAll(this, element.children);
     } else {
-      throw new I18nError(element.sourceSpan, `Invalid element found in message.`);
+      throw new TranslationParseError(element.sourceSpan, `Invalid element found in message.`);
     }
   }
 
diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_translation_parser.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_translation_parser.ts
index 93350b9ea3..7679f61801 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_translation_parser.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff1/xliff1_translation_parser.ts
@@ -11,7 +11,7 @@ import {extname} from 'path';
 import {TargetMessageRenderer} from '../../../message_renderers/target_message_renderer';
 import {TranslationBundle} from '../../../translator';
 import {BaseVisitor} from '../base_visitor';
-import {I18nError} from '../i18n_error';
+import {TranslationParseError} from '../translation_parse_error';
 import {TranslationParser} from '../translation_parser';
 import {getAttrOrThrow, parseInnerRange} from '../translation_utils';
 import {Xliff1MessageSerializer} from './xliff1_message_serializer';
@@ -75,12 +75,13 @@ class XliffTranslationVisitor extends BaseVisitor {
     if (element.name === 'trans-unit') {
       const id = getAttrOrThrow(element, 'id');
       if (this.translations[id] !== undefined) {
-        throw new I18nError(element.sourceSpan, `Duplicated translations for message "${id}"`);
+        throw new TranslationParseError(
+            element.sourceSpan, `Duplicated translations for message "${id}"`);
       }
 
       const targetMessage = element.children.find(isTargetElement);
       if (targetMessage === undefined) {
-        throw new I18nError(element.sourceSpan, 'Missing required <target> element');
+        throw new TranslationParseError(element.sourceSpan, 'Missing required <target> element');
       }
       this.translations[id] = serializeTargetMessage(targetMessage);
     } else {
diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_message_serializer.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_message_serializer.ts
index 6f2d93379d..0545cf2f79 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_message_serializer.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_message_serializer.ts
@@ -8,7 +8,7 @@
 import {Element, Expansion, ExpansionCase, Node, Text, visitAll} from '@angular/compiler';
 import {MessageRenderer} from '../../../message_renderers/message_renderer';
 import {BaseVisitor} from '../base_visitor';
-import {I18nError} from '../i18n_error';
+import {TranslationParseError} from '../translation_parse_error';
 import {getAttrOrThrow, getAttribute} from '../translation_utils';
 
 const INLINE_ELEMENTS = ['cp', 'sc', 'ec', 'mrk', 'sm', 'em'];
@@ -33,7 +33,7 @@ export class Xliff2MessageSerializer<T> extends BaseVisitor {
     } else if (INLINE_ELEMENTS.indexOf(element.name) !== -1) {
       visitAll(this, element.children);
     } else {
-      throw new I18nError(element.sourceSpan, `Invalid element found in message.`);
+      throw new TranslationParseError(element.sourceSpan, `Invalid element found in message.`);
     }
   }
 
diff --git a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_translation_parser.ts b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_translation_parser.ts
index 65736b6395..6167c9fcac 100644
--- a/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_translation_parser.ts
+++ b/packages/localize/src/tools/src/translate/translation_files/translation_parsers/xliff2/xliff2_translation_parser.ts
@@ -11,7 +11,7 @@ import {extname} from 'path';
 import {TargetMessageRenderer} from '../../../message_renderers/target_message_renderer';
 import {TranslationBundle} from '../../../translator';
 import {BaseVisitor} from '../base_visitor';
-import {I18nError} from '../i18n_error';
+import {TranslationParseError} from '../translation_parse_error';
 import {TranslationParser} from '../translation_parser';
 import {getAttrOrThrow, parseInnerRange} from '../translation_utils';
 import {Xliff2MessageSerializer} from './xliff2_message_serializer';
@@ -78,7 +78,7 @@ class Xliff2TranslationVisitor extends BaseVisitor {
     if (element.name === 'unit') {
       const externalId = getAttrOrThrow(element, 'id');
       if (this.translations[externalId] !== undefined) {
-        throw new I18nError(
+        throw new TranslationParseError(
             element.sourceSpan, `Duplicated translations for message "${externalId}"`);
       }
       visitAll(this, element.children, {unit: externalId});
@@ -86,7 +86,7 @@ class Xliff2TranslationVisitor extends BaseVisitor {
       assertTranslationUnit(element, context);
       const targetMessage = element.children.find(isTargetElement);
       if (targetMessage === undefined) {
-        throw new I18nError(element.sourceSpan, 'Missing required <target> element');
+        throw new TranslationParseError(element.sourceSpan, 'Missing required <target> element');
       }
       this.translations[context.unit] = serializeTargetMessage(targetMessage);
     } else {
@@ -97,7 +97,7 @@ class Xliff2TranslationVisitor extends BaseVisitor {
 
 function assertTranslationUnit(segment: Element, context: any) {
   if (context === undefined || context.unit === undefined) {
-    throw new I18nError(
+    throw new TranslationParseError(
         segment.sourceSpan, 'Invalid <segment> element: should be a child of a <unit> element.');
   }
 }