# AttributeError: 'CertificateBatchHandler' object has no attribute 'certificates\_to\_issue'

**URL:** <https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183>\
**Category:** Support\
**Created:** [July 9, 2018, 3:03pm UTC](https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183 "2018-07-09T15:03:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Taibah](https://avatars.discourse-cdn.com/v4/letter/t/7c8e57/32.png) [@Taibah](https://community.blockcerts.org/u/Taibah)\
**Post date:** [July 9, 2018, 3:03pm UTC](https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183/1 "2018-07-09T15:03:07Z")

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Hello guys everytime i try to issue a certificate i get this error

AttributeError: ‘CertificateBatchHandler’ object has no attribute ‘certificates\_to\_issue’

i tried changing the chain to reg and still also with the bitcoind and without

issuing\_address = myaddress

chain=bitcoin\_testnet  
bitcoind=false

usb\_name=/etc/cert-issuer/  
key\_file=pk\_issuer.txt

unsigned\_certificates\_dir=/etc/cert-issuer/data/unsigned\_certificates  
blockchain\_certificates\_dir=/etc/cert-issuer/data/blockchain\_certificates  
work\_dir=/etc/cert-issuer/work

no\_safe\_mode

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**Author:** ![dannysuarez](https://sea2.discourse-cdn.com/flex016/user_avatar/community.blockcerts.org/dannysuarez/32/558_2.png) [@dannysuarez](https://community.blockcerts.org/u/dannysuarez)\
**Post date:** [November 14, 2018, 5:50pm UTC](https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183/2 "2018-11-14T17:50:25Z")

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> [@Taibah](#):
>
> unsigned\_certificates\_dir

I had the same problem. Please be sure you have files in the unsigned\_certificates\_dir folder. That was the reason for me.

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<div class="post-metadata">

**Author:** ![osheenchavhan](https://avatars.discourse-cdn.com/v4/letter/o/df705f/32.png) [@osheenchavhan](https://community.blockcerts.org/u/osheenchavhan)\
**Post date:** [January 28, 2020, 8:55pm UTC](https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183/3 "2020-01-28T20:55:50Z")

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Hi Danny,

I am facing similar issue. And I have checked and copy pasted example certificate in unsigned\_certificate folder.

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<div class="post-metadata">

**Author:** ![CHA894](https://avatars.discourse-cdn.com/v4/letter/c/54ee81/32.png) [@CHA894](https://community.blockcerts.org/u/CHA894)\
**Post date:** [June 27, 2021, 8:51pm UTC](https://community.blockcerts.org/t/attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/1183/4 "2021-06-27T20:51:17Z")

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was facing a similar issue… fixed by using CertificateBatchHandler and not CertificateBatchWebHandler by calling instantiate\_blockchain\_handlers with file\_mode=True

```auto
    certificate_batch_handler, transaction_handler, connector = \
            bitcoin.instantiate_blockchain_handlers(config, True)

```