Below is a list of error codes, descriptions, and suggested fixes. Please see our notifications section to learn how to receive notifications when encoding errors occur. Never hesitate to contact support with questions.

Error Code	Description	Suggestion
ECOM00101	Could not write header for output file	The specified codec that you have selected does not support your specified output. You may be including or omitting certain parameters that are not supported for this format. In addition to that, you may need special parameters to be specified. Please check if you are explicitly allowed the specified video and audio codecs for this format.
ECOM00102	Error while opening file	Our encoding platform is experiencing issues decoding your source file. It may be the case that your source file uses some features that our decoder doesn't currently support. Please visit https://www.encoding.com/formats for more information.
ECOM00122	Unknown format	This error could denote a few different issues: 1) Your source file may be corrupted. Please verify that your source has uploaded in its entirety. 2) Double check that your file is supported by encoding.com. It may not be supported. Check it against our source listing: http://www.encoding.com/formats 3) The path to your source may not be valid. Be sure the source URL you specified is correct in path and syntax.
ECOM00103	Incorrect frame size	Please check the frame size is correctly specified in your request. Make sure that it does not contain whitespaces or zero dimensions (for example 0x240). It would also be useful for you to inspect your source video to ensure that the video you are submitting has the correct dimensions specified in your source media.
ECOM00104	Frame size must be a multiple of 2	You'll receive this message when you've specified an invalid width or height value in your request. When specifying size as WxH, both width and height must be a multiple of 2.
ECOM00105	Crop size must be a multiple of 2	You'll receive this message when you have chosen crop parameters that are not divisible by 2. Please double check your request for any odd numbers.
ECOM00106	Error while opening codec for output stream	It is possible to create tasks that just don't meet the specs for certain codecs. Please ensure that the specified parameters (bit rate, audio sampling rate, number of audio channels) meet the requirements of the specified codec.
ECOM00107	Unknown encoder	You'll receive this error when you've specified an output codec that encoding.com does not support. Please check if the codec you've requested is part of our the services that we offer. Visit https://www.encoding.com/formats for more information.
ECOM00108	Unsupported codec for output stream	There are certain formats that need to have certain parameters defined before they will work properly. In such cases you must specify these values explicitly in your request.
ECOM00109	Output file does not contain any stream	It seems your source file looks like a valid video container, but it doesn't contain any video/audio data. Be sure the source URL you specified returns valid data and there is no JavaScript or external references that can't be interpreted by our platform.
ECOM00201	-	-
ECOM00110	Cannot allocate temp picture, check pix fmt	You'll receive this error if you've specified a frame size that is not acceptable to the format you have chosen. This will happen when the frame size that is requested is too large for the selected codec.
ECOM00202	Error putting thumbnail	This error is encountered when our platform is unable to deliver the thumbnail to the specified destination. Please verify the path, syntax and permissions and retry your request.
ECOM00111	Unsupported codec .* for input	Your source file is not supported. Please visit https://www.encoding.com/formats for more information.
ECOM00203	S3 Download error	When you submit jobs to us via an Amazon S3 location, it's imperative that we can read it. Please refer to the Knowledge Base article on setting permissions if your source file is to be encoded properly. https://help.encoding.com/knowledge-base/article/how-can-i-use-a-amazon-s3-file-as-a-source/
ECOM00112	Encoding was not completed: .*: could not find codec parameters	Your source file did not contain a video stream. Please check your source file for a video stream if the request that you made was for an output requiring audio and video.
ECOM00204	S3 Upload Error: Access denied	When you encounter this error, first verify that the S3 destination bucket has been granted write permissions for AWS user fastencoding. Please view the knowledge base article on S3 delivery for further explanation: https://edchelp.wpengine.com/knowledge-base/article/setting-permissions-for-amazon-s3-bucket-delivery-from-encoding-com/
ECOM00205	Upload Error: Couldn't resolve host	The username in your destination must be URL encoded. For example, if '@' is part of your username, you must replace the '@' in the username part of your destination URL with '%40'.
ECOM00206	Upload Error: Uploaded unaligned file size	Please make sure the source file was not moved or deleted during upload. There's also the chance that the network during transit. Please re-upload and try again.
ECOM00207	Error putting file to S3	It appears the destination folder does not have permissions set properly. Please ensure that the specified destination bucket exists. You can read all about S3 Amazon permissions for destinations at this Knowledge Base article: https://help.encoding.com/knowledge-base/article/setting-permissions-for-amazon-s3-bucket-delivery-from-encoding-com/
ECOM00208	Error accessing S3 file	It appears the destination folder does not have permissions set properly. Please ensure that the specified destination bucket exists. You can read all about S3 Amazon permissions for destinations at this Knowledge Base article: https://help.encoding.com/knowledge-base/article/setting-permissions-for-amazon-s3-bucket-delivery-from-encoding-com/
ECOM00113	Unknown encoder error	This vague error will be thrown when there is an encoder error at the platform level. Please contact support when this happens.
ECOM00209	Failed FTP upload: 550	Error 550 usually denotes a permissions error. Please check FTP path directories, permissions, and credentials.
ECOM00210	Upload Error: Authentication failure	There is an issue with your credentials. Please double check that your username and password are correct. Make sure to URL encode the username in your destination.
ECOM00114	Requested video bitrate is too low	For this error, refer back to your request and verify that you specified the bitrate correctly, e.g. "500k" instead of "500".
ECOM00115	Video stream was not found	Generally we see these errors when there are issues related to the uploading of source clips. Also, please double check that the video that you submitted contains a video stream.
ECOM00211	Timed out before server could connect to us	Please enable passive mode in your FTP URL. Simply add '?passive=yes' to the end of your FTP URL.
ECOM00212	Upload Error: Upload failed: Permission denied	There is an issue with your credentials. Please double check that your username and password are correct. Make sure to URL encode the username in your destination.
ECOM00213	Upload failed: Permission denied	There is an issue with your credentials or permissions. Please double check that your username and password are correct. Make sure to URL encode the username in your destination, anc check permissions for the specified user.
ECOM00116	Wrong input file format	Your source file may be corrupted or is not a supported format. Be sure the source URL you specified returns valid data and there is no JavaScript or external references that can't be interpreted by our platform.
ECOM00117	No result file	Our encoder was not able to produce any resulting file from the submitted clip. This is a platform error, let us know if this persists.
ECOM00118	Video codec is not supported	Our encoding engine is unable to decode the source video that you submitted. Please refer to our supported format list and submit a different version of your clip. https://www.encoding.com/formats
ECOM00119	libfaac doesn't support this output format	You are missing a required audio parameter.
ECOM00120	Unsupported codec for input audio stream	Your source media contains an audio stream that our platform could not decode.
ECOM00121	Unsupported codec for input video stream	Your source media contains a video stream that our system cannot decode.
ECOM00214	Error getting file: Download error	Our encoding platform is experiencing issues accessing your files at your S3 location. Please make sure your source files and containing bucket are readable by AWS user 'fastencoding'.
ECOM00215	couldn't connect to host	This error occurs when we have users that are requesting that our platform access files that are on an FTP server that is behind a firewall. Also, please verify that your FTP server is running and reachable by outside sources.
ECOM00001	The AWS Access Key Id you provided does not exist	Please verify you specified correct AWS key and it is properly encoded in the URL. If you still experience problems, please contact customer support.
ECOM00216	connect() timed out	This error occurs when trying to access files that are on an FTP server behind a firewall. Also, please verify that your FTP server is running and reachable by outside sources.
ECOM00217	error opening file	Please verify that your source file is self-contained. It may be that your source file contains references to streams located in another files on your hard drive.
ECOM00218	Cannot assign requested address	This issue may be firewall related. Please ensure that we can gain access to the FTP server. Perhaps you may want to try using passive FTP mode for source or destination
ECOM00219	Error getting file:	Check your S3 source permissions, bucket name and credentials for valid values and resubmit. If this doesn't clear up your issue, try a different location or contact Support.
ECOM00123	Neither video nor audio stream was found	Verify that the source contains video and audio streams. Also verify that the source file has complete delivery. If you're sure your media contains the right components, please contact technical support
ECOM00220	Failed to MKD dir	This error is related to an issue with the path and the folder. Please check whether you specified correct path and set appropriate permissions.
ECOM00124	Segmentation error	One of the following paramters is incorrect: segment duration, framerates or keyframes. Please refer to https://help.encoding.com/knowledge-base/article/why-do-i-get-segmentation-error/
ECOM00125	Could not decode source file	You will encounter this error if you are trying to decode a video format that our encoder does not understand. Please take a moment to view our supported format list and ensure that you are pulling from our trusted format list: http://www.encoding.com/formats/
ECOM00126	Encoding was not completed	An unexpected error occurred during encoding. Computers aren't always perfect! Try to restart your job to see if you can circumvent this issue. Contact support if the issue persists.
ECOM00127	Audio stream was not found	Verify that the clip that you sent contains audio. Also please verify that the clip that you sent transferred in its entirety. If you're sure your media contains the right components, please contact technical support.
ECOM00128	Encoder error: sh: /bin/tar: Argument list too long	It is known bug. It will be fixed in nearest release
ECOM00221	S3 download error: The specified key does not exist	S3 download error: The specified key does not exist
ECOM00239	Failure establishing ssh session	Failure establishing ssh session. Please verify that you have ssh enabled on the location where the source files exist.
ECOM00222	S3 upload error: All access to this object has been disabled	S3 upload error: All access to this object has been disabled
ECOM00223	Connection time-out	Connection time-out. Please try again.
ECOM00129	Compressed SWF format not supported	Compressed SWFs are not a supported output format.
ECOM00130	-acodec libmp3lame	Encoder error: /usr/local/ffmpeg/current/bin/ffmpeg -i '/mnt/vhosts/default/code/tmp/331bc4d5e40275ce90cd389f313f4071/vzc06e77571ebe4fa8834255d2e369c81b-1200k.split.1.ts' -vn -acodec libmp3lame -y '/m
ECOM00131	-acodec libfaac	Encoder error: /usr/local/bin/ffmpeg -i '/mnt/vhosts/default/code/tmp/7fe636e0e672874c05c171958aa70d25/vz6eeca4c02df14dcabcc6a46f58e4ec13-1200k.split.1.ts' -vn -acodec libfaac -y '/mnt/vhosts/default/
ECOM00132	Incorrect video parameters such as bitrate, width or height	Incorrect video parameters such as bitrate, width or height. Please correct and try again.
ECOM00002	Overtime limit exceeded	The job took too long to process. Please try again.
ECOM00133	Can't get segment duration	Encoder error: OverallBitRate:588175\n\n\nDuration:380612\n\n\nCan't get segment duration\n
ECOM00003	The specified bucket does not exist	Please verify that the source location exists.
ECOM00224	The requested URL returned error: 403	Permissions error. Please validate permissions and credentials and try again.
ECOM00225	The requested URL returned error: 404	We can not find the source file. Please validate it is in the specified location.
ECOM00226	The requested URL returned error: 503	The server is unavailable. Please validate and try again.
ECOM00227	The requested URL returned error: 400	Your request is invalid. Please validate and try again.
ECOM00228	S3 upload error: Your socket connection to the server was not read from or written to within the timeout period. Idle connections will be closed.	S3 upload error: Your socket connection to the server was not read from or written to within the timeout period. Idle connections will be closed.
ECOM00134	width or height not divisible by 16 (480x360), compression will suffer	Width or height is not divisible by 16 (480x360), compression will suffer. Please correct and try again.
ECOM00229	S3 upload error: We encountered an internal error. Please try again.	S3 upload error: We encountered an internal error. Please try again.
ECOM00230	Creating the dir/file failed: No such file or directory	Invalid directory. Please validate and try again.
ECOM00135	syntax error near unexpected token	Encoder error: OverallBitRate:163322\nsh: -c: line 0: syntax error near unexpected token `('\nsh: -c: line 0:` /usr/local/bin/mediainfo /mnt/vhosts/default/code/tmp/afa2b2b124ecb76ad4df56a4878d036f/Alic
ECOM00231	Access denied: 530	Please validate permissions and try again.
ECOM00232	Operation timed out	Operation timed out. Please try again.
ECOM00233	Recv failure: Connection reset by peer	Recv failure: Connection reset by peer. Please try again.
ECOM00136	Bufsize is required	When VBR is a requirement, bitrate, maxrate, minrate, and bufsize should all be specified. Bufsize should be expressed in bits with no k following.
ECOM00234	off-Error putting file:	Error putting file: /usr/local/bin/curl -X PUT -T '/mnt/vhosts/default/code/tmp/converted_7897236' -H 'X-Auth-Token: 9af3e9d9-cc97-4771-a443-8799f06232e8' -H 'Content-Type: application/octet-stream' -
ECOM00137	Can not resample 4 channels @ 44100 Hz to 2 channels @ 44000 Hz	Can not resample 4 channels @ 44100 Hz to 2 channels @ 44000 Hz
ECOM00235	FTP response reading failed	FTP response reading failed. Please try again.
ECOM00236	select/poll returned error	The problem can be related to temporary network failures. Please retry.
ECOM00237	server response timeout	Upload error: server response timeout
ECOM00138	Audio downmixing failed	Audio downmixing failed. Please check your source and configuration.
ECOM00139	Failed extracting mp3	Encoder error: Failed extracting mp3. Please check your source and configuration.
ECOM00238	S3 upload error: Please re-send this request to the specified temporary endpoint. Continue to use the original request endpoint for future requests.	It looks like internal Amazon S3 issue, we are working on it.
ECOM00234	Error putting file: S3 upload error: Your socket connection to the server was not read from or written to within the timeout period. Idle connections will be closed.	It looks like internal Amazon S3 issue, we are working on it.
ECOM00117	Encoder error: no result file
ECOM00240	Error putting file:	This error is related to an issue with the path and the folder. Please check whether you specified correct path and set appropriate permissions.
ECOM00140	Concatenation failed	Source files combine failed
ECOM00241	The file is empty	The source file exists on the server but has zero length.
ECOM00242	Failed FTP upload: 451	This FTP error means "Requested action aborted, local error in processing". E.g. storage quota exceeded
ECOM00243	Authentication failure	Please check the credentials you specified in your URL and ensure it is url-encoded properly.
ECOM00245	Failed FTP upload: 553	For some reason file with the specified name could not be created. Please check the filename is valid, and the destination path uses a trailing /
ECOM00246	Download error: RETR response: 550	We are having problems access your FTP server. Please check credentials, permissions, and path.
ECOM00141	No video stream was found in Source part .*	Error occured while concatenating source files. One of your source files doesn't contain a video stream.
ECOM00247	Upload error: Got a 421 ftp-server response when 220 was expected	We can't connect to your FTP server to deliver your output because it has reached its maximum connections. Please try again later.
ECOM00248	Download error: Got a 421 ftp-server response when 220 was expected	We can't connect to your FTP server to deliver your output because it has reached its maximum connections. Please try again later.
ECOM00249	Download error: Access denied: 421	We can't connect to your FTP server to access your source file. The service is not available. Please try again later.
ECOM00250	Upload error: Access denied: 421	We can't connect to your FTP server to upload your output. The service is not available. Please try again later.
ECOM00251	Upload error: Failed FTP upload: 553	Can't upload encoded file to FTP. File name not allowed.
ECOM00252	Download error: The file is empty	Can't download source file. Please check that specified source file not empty and restart media.
ECOM00253	Download error: Server denied you to change to the given directory	Can't download source file. Please make sure your source file exists and accessible.
ECOM00254	Upload error: Failed FTP upload: 421	We can't connect to your FTP server to deliver your output because it has reached its maximum connections. Please try again later.
ECOM00255	Download error: Could not open remote file for reading: No such file or directory	Can't download source file. Please make sure your source file exists and accessible.
ECOM00256	Download error: The requested URL returned error: 401	Can't download source file. Please make sure your source file exists and accessible.
ECOM00257	Download error: Couldn't resolve host.*	We can't resolve your FTP server hostname. Please check path to your source file and restart media.
ECOM00258	Download error: RETR response: 425	Can't download source file. Please make sure your source file exists and accessible.
ECOM00259	Download error: transfer closed with .* bytes remaining to read	Can't download source file because of an interrupted connection. Please tray again.
ECOM00260	Upload error: Failed FTP upload: 451	Can't upload output. There is an error processing the request with your FTP server. Please try again later.
ECOM00261	ffmpeg version 0.8.1	Please contact support for details.
ECOM00004	Rerun limit exceeded	Rerun limit exceeded. Please try again later or contact support if this persists.
ECOM00262	RETR response: 550	Permissions error. Please validate permissions and credentials and try again.
ECOM00265	Failure when receiving data from the peer	The transfer was interrupted. Please check your firewall settings.
ECOM00142	Source duration should not be greater than .*	Source duration should not be greater than 12 hours.
ECOM00143	Video size should be greater than .*	Video size should be greater than 100x100
ECOM00144	Video bitrate should be greater than .*	Video bitrate should be greater than 1k
ECOM00266	result file too small	The output is much smaller than expected (calculated from its duration and specified bit rate). Please try decreasing the bitrate.
ECOM00267	Upload error: Timeout was reached	Please try to restart failed uploads.
ECOM00268	response reading failed	Try using passive FTP mode (add ?passive=yes to the end for your URL)
ECOM00269	Audio extraction failed	Our decoder could not extract audio stream from your source file.
ECOM00270	Connection timed out	Please check your firewall settings.
ECOM00271	Progress stuck	Unfortunately, encoding engine hasn't shown any progress for a long time while processing this task. The problem could be in the engine itself or in your source media. Please contact support for details.
ECOM01101	Encoding was not completed:.*Source file does not contain audio stream for audio_only=yes stream	Your source file did not contain an audio stream. Please check your source file for an audio stream if the request that you made was for an output requiring audio_only stream.