# Error: Issue the certificates on the blockchain

**URL:** <https://community.blockcerts.org/t/error-issue-the-certificates-on-the-blockchain/2378>\
**Category:** Technical\
**Created:** [March 3, 2020, 9:10am UTC](https://community.blockcerts.org/t/error-issue-the-certificates-on-the-blockchain/2378 "2020-03-03T09:10:40Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![lemoustachiste](https://avatars.discourse-cdn.com/v4/letter/l/7c8e57/32.png) [@lemoustachiste](https://community.blockcerts.org/u/lemoustachiste)\
**Post date:** [July 11, 2022, 1:44pm UTC](https://community.blockcerts.org/t/error-issue-the-certificates-on-the-blockchain/2378/3 "2022-07-11T13:44:45Z")

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Please take a look at this:

> [@Error: with cert\_issuer -c conf.ini(AttributeError: ‘CertificateBatchHandler’ object has no attribute 'certificates\_to\_issue’)](https://community.blockcerts.org/t/error-with-cert-issuer-c-conf-ini-attributeerror-certificatebatchhandler-object-has-no-attribute-certificates-to-issue/3209):
>
> I got error when I try to issue a certificate AttributeError: ‘CertificateBatchHandler’ object has no attribute 'certificates\_to\_issue’ I followed this website I’ve aleady checked other post about this error but it didn’t work. Anyone can solve this problem?? Please help me. Error conf.ini issuing\_address = myaddress verification\_method = URL chain=bitcoin\_testnet #bitcoind usb\_name=./ key\_file=./pk\_issuer.txt unsigned\_certificates\_dir=./data/unsigned\_certificat…

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