diff --git a/src/Symfony/Component/Validator/Resources/translations/validators.lv.xlf b/src/Symfony/Component/Validator/Resources/translations/validators.lv.xlf
index b3560305df00b..878e8420a1611 100644
--- a/src/Symfony/Component/Validator/Resources/translations/validators.lv.xlf
+++ b/src/Symfony/Component/Validator/Resources/translations/validators.lv.xlf
@@ -340,15 +340,15 @@
             </trans-unit>
             <trans-unit id="88">
                 <source>This value should be positive.</source>
-                <target>Šai vērtībāi jābūt pozitīvai.</target>
+                <target>Šai vērtībai jābūt pozitīvai.</target>
             </trans-unit>
             <trans-unit id="89">
                 <source>This value should be either positive or zero.</source>
-                <target>Šai vērtībāi jābūt pozitīvai vai vienādai ar nulli.</target>
+                <target>Šai vērtībai jābūt pozitīvai vai vienādai ar nulli.</target>
             </trans-unit>
             <trans-unit id="90">
                 <source>This value should be negative.</source>
-                <target>Šai vērtībāi jābūt negatīvai.</target>
+                <target>Šai vērtībai jābūt negatīvai.</target>
             </trans-unit>
             <trans-unit id="91">
                 <source>This value should be either negative or zero.</source>
diff --git a/src/Symfony/Component/VarDumper/Caster/ExceptionCaster.php b/src/Symfony/Component/VarDumper/Caster/ExceptionCaster.php
index c29b7df261d33..b0d137cdde04b 100644
--- a/src/Symfony/Component/VarDumper/Caster/ExceptionCaster.php
+++ b/src/Symfony/Component/VarDumper/Caster/ExceptionCaster.php
@@ -214,18 +214,24 @@ public static function castFrameStub(FrameStub $frame, array $a, Stub $stub, $is
 
                 if (file_exists($f['file']) && 0 <= self::$srcContext) {
                     if (!empty($f['class']) && (is_subclass_of($f['class'], 'Twig\Template') || is_subclass_of($f['class'], 'Twig_Template')) && method_exists($f['class'], 'getDebugInfo')) {
-                        $template = $f['object'] ?? unserialize(sprintf('O:%d:"%s":0:{}', \strlen($f['class']), $f['class']));
-
-                        $ellipsis = 0;
-                        $templateSrc = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : '');
-                        $templateInfo = $template->getDebugInfo();
-                        if (isset($templateInfo[$f['line']])) {
-                            if (!method_exists($template, 'getSourceContext') || !file_exists($templatePath = $template->getSourceContext()->getPath())) {
-                                $templatePath = null;
-                            }
-                            if ($templateSrc) {
-                                $src = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext, 'twig', $templatePath, $f);
-                                $srcKey = ($templatePath ?: $template->getTemplateName()).':'.$templateInfo[$f['line']];
+                        $template = null;
+                        if (isset($f['object'])) {
+                            $template = $f['object'];
+                        } elseif ((new \ReflectionClass($f['class']))->isInstantiable()) {
+                            $template = unserialize(sprintf('O:%d:"%s":0:{}', \strlen($f['class']), $f['class']));
+                        }
+                        if (isset($template)) {
+                            $ellipsis = 0;
+                            $templateSrc = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : '');
+                            $templateInfo = $template->getDebugInfo();
+                            if (isset($templateInfo[$f['line']])) {
+                                if (!method_exists($template, 'getSourceContext') || !file_exists($templatePath = $template->getSourceContext()->getPath())) {
+                                    $templatePath = null;
+                                }
+                                if ($templateSrc) {
+                                    $src = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext, 'twig', $templatePath, $f);
+                                    $srcKey = ($templatePath ?: $template->getTemplateName()).':'.$templateInfo[$f['line']];
+                                }
                             }
                         }
                     }
diff --git a/src/Symfony/Component/VarDumper/Tests/Caster/ExceptionCasterTest.php b/src/Symfony/Component/VarDumper/Tests/Caster/ExceptionCasterTest.php
index 50c7a8d24dca0..ddd7c0b6ae2c6 100644
--- a/src/Symfony/Component/VarDumper/Tests/Caster/ExceptionCasterTest.php
+++ b/src/Symfony/Component/VarDumper/Tests/Caster/ExceptionCasterTest.php
@@ -15,7 +15,9 @@
 use Symfony\Component\VarDumper\Caster\Caster;
 use Symfony\Component\VarDumper\Caster\ExceptionCaster;
 use Symfony\Component\VarDumper\Caster\FrameStub;
+use Symfony\Component\VarDumper\Caster\TraceStub;
 use Symfony\Component\VarDumper\Cloner\VarCloner;
+use Symfony\Component\VarDumper\Dumper\CliDumper;
 use Symfony\Component\VarDumper\Dumper\HtmlDumper;
 use Symfony\Component\VarDumper\Test\VarDumperTestTrait;
 
@@ -44,15 +46,15 @@ public function testDefaultSettings()
   #message: "foo"
   #code: 0
   #file: "%sExceptionCasterTest.php"
-  #line: 28
+  #line: %d
   trace: {
-    %s%eTests%eCaster%eExceptionCasterTest.php:28 {
+    %s%eTests%eCaster%eExceptionCasterTest.php:%d {
       Symfony\Component\VarDumper\Tests\Caster\ExceptionCasterTest->getTestException($msg, &$ref = null)
       › {
       ›     return new \Exception(''.$msg);
       › }
     }
-    %s%eTests%eCaster%eExceptionCasterTest.php:40 { …}
+    %s%eTests%eCaster%eExceptionCasterTest.php:%d { …}
 %A
 EODUMP;
 
@@ -66,13 +68,13 @@ public function testSeek()
 
         $expectedDump = <<<'EODUMP'
 {
-  %s%eTests%eCaster%eExceptionCasterTest.php:28 {
+  %s%eTests%eCaster%eExceptionCasterTest.php:%d {
     Symfony\Component\VarDumper\Tests\Caster\ExceptionCasterTest->getTestException($msg, &$ref = null)
     › {
     ›     return new \Exception(''.$msg);
     › }
   }
-  %s%eTests%eCaster%eExceptionCasterTest.php:65 { …}
+  %s%eTests%eCaster%eExceptionCasterTest.php:%d { …}
 %A
 EODUMP;
 
@@ -89,15 +91,15 @@ public function testNoArgs()
   #message: "1"
   #code: 0
   #file: "%sExceptionCasterTest.php"
-  #line: 28
+  #line: %d
   trace: {
-    %sExceptionCasterTest.php:28 {
+    %sExceptionCasterTest.php:%d {
       Symfony\Component\VarDumper\Tests\Caster\ExceptionCasterTest->getTestException($msg, &$ref = null)
       › {
       ›     return new \Exception(''.$msg);
       › }
     }
-    %s%eTests%eCaster%eExceptionCasterTest.php:84 { …}
+    %s%eTests%eCaster%eExceptionCasterTest.php:%d { …}
 %A
 EODUMP;
 
@@ -114,9 +116,9 @@ public function testNoSrcContext()
   #message: "1"
   #code: 0
   #file: "%sExceptionCasterTest.php"
-  #line: 28
+  #line: %d
   trace: {
-    %s%eTests%eCaster%eExceptionCasterTest.php:28
+    %s%eTests%eCaster%eExceptionCasterTest.php:%d
     %s%eTests%eCaster%eExceptionCasterTest.php:%d
 %A
 EODUMP;
@@ -124,6 +126,33 @@ public function testNoSrcContext()
         $this->assertDumpMatchesFormat($expectedDump, $e);
     }
 
+    public function testShouldReturnTraceForConcreteTwigWithError()
+    {
+        require_once \dirname(__DIR__).'/Fixtures/ConcreteBug.php';
+
+        $cloner = new VarCloner();
+        $innerExc = (new \__TwigTemplate_VarDumperFixture_concreteBug(null, __FILE__))->provideError();
+        $nestingWrapper = new \stdClass();
+        $nestingWrapper->trace = new TraceStub($innerExc->getTrace());
+
+        $dumper = new CliDumper();
+        $dump = $dumper->dump($cloner->cloneVar($nestingWrapper)->withRefHandles(false), true);
+        $expectedDump = <<<'EODUMP'
+{
+  +"trace": {
+    %sConcreteBug.php:%d {
+      __TwigTemplate_VarDumperFixture_abstractBug->provideError()
+      › {
+      ›     return $this->createError();
+      › }
+    }
+    %sExceptionCasterTest.php:%d { …}
+%A
+EODUMP;
+
+        $this->assertStringMatchesFormat($expectedDump, $dump);
+    }
+
     public function testHtmlDump()
     {
         if (ini_get('xdebug.file_link_format') || get_cfg_var('xdebug.file_link_format')) {
@@ -146,10 +175,10 @@ public function testHtmlDump()
   #<span class=sf-dump-protected title="Protected property">code</span>: <span class=sf-dump-num>0</span>
   #<span class=sf-dump-protected title="Protected property">file</span>: "<span class=sf-dump-str title="%sExceptionCasterTest.php
 %d characters"><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%s%eVarDumper</span><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%e</span>Tests%eCaster%eExceptionCasterTest.php</span>"
-  #<span class=sf-dump-protected title="Protected property">line</span>: <span class=sf-dump-num>28</span>
+  #<span class=sf-dump-protected title="Protected property">line</span>: <span class=sf-dump-num>%d</span>
   <span class=sf-dump-meta>trace</span>: {<samp>
     <span class=sf-dump-meta title="%sExceptionCasterTest.php
-Stack level %d."><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%s%eVarDumper</span><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%e</span>Tests%eCaster%eExceptionCasterTest.php</span>:<span class=sf-dump-num>28</span>
+Stack level %d."><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%s%eVarDumper</span><span class="sf-dump-ellipsis sf-dump-ellipsis-path">%e</span>Tests%eCaster%eExceptionCasterTest.php</span>:<span class=sf-dump-num>%d</span>
      &hellip;%d
   </samp>}
 </samp>}
@@ -186,7 +215,7 @@ public function testFrameWithTwig()
     class: "__TwigTemplate_VarDumperFixture_u75a09"
     src: {
       %sTwig.php:1 {
-        › 
+        ›%s
         › foo bar
         ›   twig source
       }
@@ -201,7 +230,7 @@ class: "__TwigTemplate_VarDumperFixture_u75a09"
       %sExceptionCasterTest.php:2 {
         › foo bar
         ›   twig source
-        › 
+        ›%s
       }
     }
   }
@@ -221,7 +250,7 @@ public function testExcludeVerbosity()
   #message: "foo"
   #code: 0
   #file: "%sExceptionCasterTest.php"
-  #line: 28
+  #line: %d
 }
 EODUMP;
 
diff --git a/src/Symfony/Component/VarDumper/Tests/Fixtures/ConcreteBug.php b/src/Symfony/Component/VarDumper/Tests/Fixtures/ConcreteBug.php
new file mode 100644
index 0000000000000..3e1fe066dac96
--- /dev/null
+++ b/src/Symfony/Component/VarDumper/Tests/Fixtures/ConcreteBug.php
@@ -0,0 +1,57 @@
+<?php
+
+abstract class __TwigTemplate_VarDumperFixture_abstractBug extends \Twig\Template
+{
+    private function createError()
+    {
+        return new \RuntimeException('Manually triggered error.');
+    }
+
+    public function provideError()
+    {
+        return $this->createError();
+    }
+}
+
+/* foo_abstract.twig */
+class __TwigTemplate_VarDumperFixture_concreteBug extends __TwigTemplate_VarDumperFixture_abstractBug
+{
+    public function __construct(Twig\Environment $env = null, $path = null)
+    {
+        if (null !== $env) {
+            parent::__construct($env);
+        }
+        $this->parent = false;
+        $this->blocks = [];
+        $this->path = $path;
+    }
+    
+    /**
+     * @inheritDoc
+     */
+    public function getTemplateName()
+    {
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getDebugInfo()
+    {
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getSourceContext()
+    {
+        return new Twig\Source("   foo bar\n     twig source\n\n", 'foo_abstract.twig', $this->path ?: __FILE__);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    protected function doDisplay(array $context, array $blocks = [])
+    {
+    }
+}