Nginx Proxy Manager fails to generate Let's Encrypt certificates using Cloudflare DNS

[zanatrix]

Describe the bug
Nginx Proxy Manager fails to generate Let's Encrypt certificates using Cloudflare DNS challenge due to package version conflicts between certbot-dns-cloudflare and cloudflare Python packages. The system reports:

1. pkg_resources.VersionConflict: ( Requirement.parse('certbot>=4.1.1' ,CloudFlare=4) )

Nginx Proxy Manager Version
2.12.4 (Also occurs in latest)

To Reproduce

1. Set up NPM with Cloudflare DNS credentials
2. Attempt to request SSL certificate for any ___domain
3. System fails with dependency errors

Expected behavior
Clean certificate generation using Cloudflare DNS-01 challenge

Operating System

• Docker on Ubuntu 22.04
• Portainer-managed

[wintech147]

I had this same issue. I think. I updated from 2.12.3 to 2.12.4 and I could not log in to my NPM container. Looking at the logs I saw this:

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

[7/4/2025] [4:44:45 PM] [Global ] › ✖ error Some plugins failed to install. Please check the logs above CommandError: Some plugins failed to install. Please check the logs above

at /app/lib/certbot.js:39:14

at Immediate.<anonymous> (/app/node_modules/batchflow/lib/batchflow.js:80:9)

at process.processImmediate (node:internal/timers:483:21) {

previous: undefined,

code: 1,

public: false

}

I had to revert back to 2.12.3 for things to work.

[mschout]

I had the exact same issue, had to revert to 2.12.3

[masterwishx]

same issue on Oracle VPS (arm64), is any fix found ?

[bh56]

I was just switching over to Cloudflare as it supports DNS challenge and Squarespace does not. Spent quite a bit of time trying to figure why it wouldn't work. I reverted back to 2.12.3 and was able to add the certificate. Would be nice to be on the most current version though.

[epiccolotto]

I have the same issue, I have tried also with a new installation, and this is the error message when I try to get the Cloudflare certificate:

[7/5/2025] [9:51:40 AM] [Express  ] › ⚠  warning   ERROR: Cannot install certbot-dns-cloudflare==4.0.0 and cloudflare==4.0.* because these package versions have conflicting dependencies.
ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

[fatexs]

same here, had to revert to 2.12.3

ERROR: Cannot install certbot-dns-cloudflare==4.0.0 and cloudflare==4.0.* because these package versions have conflicting dependencies.

[masterwishx]

@zanatrix
Yep we all have the same issue duplicated in other #4617,#4625,#4629,#4636

[ForsakenRei]

Several duplicated issues now, fortunately we can easily roll it back to 2.12.3.

[bh56]

I saw a post on the other thread about someone trying the most current version. I updated to v2.12.6 and I'm able to use Cloudflare DNS challenge again. So, to me it appear to be fixed now.

[deviantintegral]

Agreed, updated without issues. Let's close this one! And thanks @jc21 👏 .

[qwerinope]

Same here! The latest image doesn't have the issue anymore!

[masterwishx]

Yep, confirm. updated some days ago...