Address Missing Mix Manifest Error

src/IgnitionServiceProvider.php

@@ -39,6 +39,7 @@
 use Facade\Ignition\SolutionProviders\MissingAppKeySolutionProvider;
 use Facade\Ignition\SolutionProviders\MissingColumnSolutionProvider;
 use Facade\Ignition\SolutionProviders\MissingImportSolutionProvider;
+use Facade\Ignition\SolutionProviders\MissingMixManifestSolutionProvider;
 use Facade\Ignition\SolutionProviders\MissingPackageSolutionProvider;
 use Facade\Ignition\SolutionProviders\RunningLaravelDuskInProductionProvider;
 use Facade\Ignition\SolutionProviders\SolutionProviderRepository;
@@ -371,6 +372,7 @@ protected function getDefaultSolutions(): array
             MissingColumnSolutionProvider::class,
             UnknownValidationSolutionProvider::class,
             UndefinedPropertySolutionProvider::class,
+            MissingMixManifestSolutionProvider::class,
         ];
     }
 

src/SolutionProviders/MissingMixManifestSolutionProvider.php

@@ -0,0 +1,25 @@
+<?php
+
+
+namespace Facade\Ignition\SolutionProviders;
+
+use Facade\IgnitionContracts\BaseSolution;
+use Facade\IgnitionContracts\HasSolutionsForThrowable;
+use Illuminate\Support\Str;
+use Throwable;
+
+class MissingMixManifestSolutionProvider implements HasSolutionsForThrowable
+{
+    public function canSolve(Throwable $throwable): bool
+    {
+        return Str::startsWith($throwable->getMessage(), 'The Mix manifest does not exist');
+    }
+
+    public function getSolutions(Throwable $throwable): array
+    {
+        return [
+            BaseSolution::create('Missing Mix Manifest File')
+                ->setSolutionDescription('Did you forget to run `npm install && npm run dev`?'),
+        ];
+    }
+}

tests/Solutions/MixManifestNotFoundSolutionProviderTest.php

@@ -0,0 +1,31 @@
+<?php
+
+
+namespace Facade\Ignition\Tests\Solutions;
+
+use Exception;
+use Facade\Ignition\SolutionProviders\MissingMixManifestSolutionProvider;
+use Facade\Ignition\Tests\TestCase;
+use Illuminate\Support\Str;
+
+class MixManifestNotFoundSolutionProviderTest extends TestCase
+{
+    /** @test */
+    public function it_can_solve_a_missing_mix_manifest_exception()
+    {
+        $canSolve = app(MissingMixManifestSolutionProvider::class)
+            ->canSolve(new Exception('The Mix manifest does not exist.'));
+
+        $this->assertTrue($canSolve);
+    }
+
+    /** @test */
+    public function it_can_recommend_running_npm_install_and_npm_run_dev()
+    {
+        /** @var \Facade\IgnitionContracts\Solution $solution */
+        $solution = app(MissingMixManifestSolutionProvider::class)
+            ->getSolutions(new Exception('The Mix manifest does not exist.'))[0];
+
+        $this->assertTrue(Str::contains($solution->getSolutionDescription(), 'Did you forget to run `npm install && npm run dev`?'));
+    }
+}