Amazon S3 exception: "The specified key does not exist"

Amazon Web-ServicesAmazon S3

Amazon Web-Services Problem Overview

I am using the AmazonS3Client in an Android app using a getObject request to download an image from my Amazon S3 bucket.

Currently, I am getting this exception: 
The specified key does not exist.
 (Service: Amazon S3; Status Code: 404; Error Code: NoSuchKey;

Even though I am able to see the object with the specified key in my S3 bucket.

Amazon Web-Services Solutions

Solution 1 - Amazon Web-Services

Well this error is actually rather straight forward.  it simply means that your file does not exist up within the S3 bucket.  Several things could be wrong:

  1. You could be trying to reference the wrong file.  Double check the path that you tried to retrieve.

  2. Whenever the file was uploaded it must have failed.  Check the logs for your S3Sync process to see if you can find any relevant output


Solution 2 - Amazon Web-Services

For me, the object definitely existed and was uploaded correctly, however, its s3 url still threw the same error:

<Message>The specified key does not exist.</Message>

I found out that the reason was because my filename contained a # symbol, and I guess certain characters or symbols will also cause this error.

Removing this character and generating the new s3 url resolved my issue.

Solution 3 - Amazon Web-Services

Note that this may happen even if the file path is correct due to s3's eventual consistency model. Basically, there may be some latency in being able to read an object after it's written. See this documentation for more information.

Solution 4 - Amazon Web-Services

In my case it was because the filename was containing spaces. Solved it thanks to this documentation (which is unrelated to the problem):

from urllib.parse import unquote_plus
key_name = unquote_plus(event['Records'][0]['s3']['object']['key'])

You also need to upload urllib as a layer with corresponding version (if your lambda is Python 3.7 you have to package urllib in a python 3.7 environment).

The reason is that AWS transform ' ' into '+' (why...) which is really problematic...

Solution 5 - Amazon Web-Services

I encountered this issue in a NodeJS Lambda function that was triggered by a file upload to S3.

My mistake was that I was not decoding the object key, which contained a colon. Corrected my code as follows:

let key = decodeURIComponent(event.Records[0].s3.object.key);

Solution 6 - Amazon Web-Services

Don't forget buckets are region specific. That might be an issue.

Also try using the S3 console to navigate to the actual object, and then click on Copy Path, you will get something like:


As long as whatever you are passing it to parses that properly I find that is the safest thing to do.

Solution 7 - Amazon Web-Services

In my case the error was appearing because I had uploaded the whole folder, containing the website files, into the container.

I solved it by moving all the files outside the folder, right into the container.

Solution 8 - Amazon Web-Services

The reason for the issue is wrong or typo in the Bucket/Key name. Do check if the bucket or key name you are providing does exists.

Solution 9 - Amazon Web-Services

Step 1: Get the latest aws-java-sdk

<!-- -->

Step 2: The correct imports

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;

If you are sure the bucket exists, Specified key does not exists error would mean the bucketname is not spelled correctly ( contains slash or special characters). Refer the documentation for naming convention.

The document quotes:

> If the requested object is available in the bucket and users are still > getting the 404 NoSuchKey error from Amazon S3, check the following: > > Confirm that the request matches the object name exactly, including > the capitalization of the object name. Requests for S3 objects are > case sensitive. For example, if an object is named myimage.jpg, but > Myimage.jpg is requested, then requester receives a 404 NoSuchKey > error. Confirm that the requested path matches the path to the object. > For example, if the path to an object is > awsexamplebucket/Downloads/February/Images/image.jpg, but the > requested path is awsexamplebucket/Downloads/February/image.jpg, then > the requester receives a 404 NoSuchKey error. If the path to the > object contains any spaces, be sure that the request uses the correct > syntax to recognize the path. For example, if you're using the AWS CLI > to download an object to your Windows machine, you must use quotation > marks around the object path, similar to: aws s3 cp > "s3://awsexamplebucket/Backup Copy Job 4/3T000000.vbk". Optionally, > you can enable server access logging to review request records in > further detail for issues that might be causing the 404 error.

AWSCredentials credentials = new BasicAWSCredentials(AWS_ACCESS_KEY_ID, AWS_SECRET_KEY);
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withRegion(Regions.US_EAST_1).build();
ObjectListing objects = s3Client.listObjects("bigdataanalytics");

Solution 10 - Amazon Web-Services

I also ran into this issue, but in my case I was inadvertently changing the internal state of my source object key when constructing the destination key:

  source_objects.each do |item|
    key = item.key.sub!(source_prefix, dest_prefix)
    item.copy_to(bucket: dest_bucket, key: key)

I'm new to Ruby and missed that sub! has side effects and sub should have been used instead.

Solution 11 - Amazon Web-Services

If your file is in a subfolder within a bucket, the subfolder should be part of the key rather than the bucket. Using the following command I was able to read the file in PowerShell.


Get-S3Object -BucketName "$Bucket" -Key "$subFolder/$fileName"

Solution 12 - Amazon Web-Services

I had the same issue, the file I was trying to read from S3 was not there. I would check if the file path you are looking for is correct and the file is present.

Solution 13 - Amazon Web-Services

I just have the error provided:

404 Not Found
Code: NoSuchKey
Message: The specified key does not exist.
Key: index.html
RequestId: 3C8J01Y73CKKJSCQ
HostId: QiQ6bqe3Cff/XjDDGm10IAArp9j6kajGKFIv4/JiJBfOFjLLxsiE796TuoLviPsCQl3KOma+Ma0=

The reason behind this is I select the access point index.html, but, rather than dragging the files for uploading, I selected the whole fodler.

So, the index.html file is indeed in the configuring-s3-code/index.html location than inside directly in the root folder.

So, please, carefully check the access point for the codebase and the problem might be there.

Solution 14 - Amazon Web-Services

In my case it was as simple as using the wrong slashes (Wrong: Microsoft-style like "foo\bar.txt". Correct: Unix-style like "foo/bar.txt") Can easily happen if you use helper functions like Path.Combine on Windows...

Solution 15 - Amazon Web-Services

I was having this error in some countries, but not all (tested by selecting different countries with my VPN).

What fixed this for me was creating a "Custom Error Response" within CloudFront.

I redirected a 404 error code to /index.html with a response code of 200.

I then created an invalidation and everything started working again.

Solution 16 - Amazon Web-Services

In my case I had the wrong key name. make sure you have the correct key name. enter image description here


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