diff --git a/src/index.ts b/src/index.ts
index b667834..457d901 100755
--- a/src/index.ts
+++ b/src/index.ts
@@ -27,16 +27,23 @@ program
     const next = options.next || false
     const cwd = process.cwd()
     const depsAlias = options.depsAlias ? resolve(cwd, options.depsAlias) : undefined
-    const stacks = options.stack ? options.stack.split(',') : null
+    const stacks = options.stack ? options.stack.split(',') : stackNames
     const stackVersions = options.stackVersions ? options.stackVersions.split(',') : null
 
+    const { error } = validate(stacks, stackVersions)
+
+    if (error) {
+      log('fail', 'FAIL')(chalk.red(error))
+      process.exit(1)
+    }
+
     await fs.promises.mkdir(join(cwd, appsCachePath), { recursive: true })
 
     for (const fixture of fixtures) {
       const features = getFeatures(fixture, next)
       const { folder, stack, version } = fixture
 
-      if (stacks && !stacks.includes(stack)) continue
+      if (!stacks.includes(stack)) continue
       if (stackVersions && !stackVersions.includes(String(version))) continue
 
       log('success')('Start creating', chalk.yellow(stack, `v${version}`), 'application in ', folder)
diff --git a/src/init/index.ts b/src/init/index.ts
index c452ba1..d1277fb 100644
--- a/src/init/index.ts
+++ b/src/init/index.ts
@@ -32,3 +32,24 @@ export function getFeatures({ stack, version }: (typeof fixtures)[0], next: bool
   ]
 }
 
+export function validate(stacks: string[], stackVersions: string[] | null): { error: string | null } {
+  const unknownStacks = stacks.filter(name => !stackNames.includes(name as App.AppStack))
+
+  if (unknownStacks.length > 0) {
+    return { error: `Unknown stack names: ${unknownStacks.join(', ')}` }
+  }
+
+  if (stacks.length > 1 && stackVersions && stackVersions.length > 0) {
+    return { error: `You can't specify versions for multiple stacks` }
+  }
+
+  if (stacks.length === 1 && stackVersions && stackVersions.length > 0) {
+    const unknownVersions = stackVersions.filter(v => !targets.find(t => t.stack === stacks[0])?.versions.includes(Number(v)))
+
+    if (unknownVersions.length > 0) {
+      return { error: `Unknown stack versions: ${unknownVersions.join(', ')}` }
+    }
+  }
+
+  return { error: null }
+}