From ff890abebf2145e8c97b94f01b48d22b47b48bea Mon Sep 17 00:00:00 2001
From: Marc Rousavy <marcrousavy@hotmail.com>
Date: Wed, 19 May 2021 10:13:20 +0200
Subject: [PATCH] fix: Frame Processor error when frame processors aren't used

---
 src/Camera.tsx | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Camera.tsx b/src/Camera.tsx
index 1db4d15..9c1e938 100644
--- a/src/Camera.tsx
+++ b/src/Camera.tsx
@@ -343,9 +343,11 @@ export class Camera extends React.PureComponent<CameraProps> {
    * @internal
    */
   componentWillUnmount(): void {
-    this.assertFrameProcessorsEnabled();
-    // @ts-expect-error JSI functions aren't typed
-    global.unsetFrameProcessor(this.handle);
+    if (this.lastFrameProcessor != null || this.props.frameProcessor != null) {
+      this.assertFrameProcessorsEnabled();
+      // @ts-expect-error JSI functions aren't typed
+      global.unsetFrameProcessor(this.handle);
+    }
   }
 
   /**