Amazon S3 exception The specified key does not exist

Question

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   com amazonaws services s3 model AmazonS3Exception   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

User · Answer

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

User · Answer

For me  the object definitely existed and was uploaded correctly  however  its s3 url still threw the same error    lt Code gt NoSuchKey lt  Code gt   lt Message gt The specified key does not exist  lt  Message gt    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

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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

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

User · Answer

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

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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

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Step 1  Get the latest aws-java-sdk   lt  -- https   mvnrepository com artifact org apache hadoop hadoop-aws -- gt   lt dependency gt   lt groupId gt com amazonaws lt  groupId gt   lt artifactId gt aws-java-sdk lt  artifactId gt   lt version gt 1 11 660 lt  version gt   lt  dependency gt    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  import com amazonaws services s3 AmazonS3  import com amazonaws services s3 AmazonS3Client  import com amazonaws services s3 AmazonS3ClientBuilder  import com amazonaws services s3 model ListObjectsRequest  import com amazonaws services s3 model ObjectListing    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    System out println objects getObjectSummaries

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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

User · Answer

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

User · Answer

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    s3    lt bucket-name gt   lt path gt  object txt  As long as whatever you are passing it to parses that properly I find that is the safest thing to do

[android] Amazon S3 exception: "The specified key does not exist"

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