Let's Encrypt Staging Certificate fails .ToPem()

[itniels]

When a Staging certificate is created, and the method .ToPem() is run, it throws the following exception:

AcmeException: Can not find issuer 'C=US,O=(STAGING) Internet Security Research Group,CN=(STAGING) Doctored Durian Root CA X3' for certificate 'C=US,O=(STAGING) Internet Security Research Group,CN=(STAGING) Pretend Pear X1'.

[kamyker]

same

[xiaogangy]

I met the same problem as well. I have followed the intruction in https://letsencrypt.org/docs/staging-environment/ and import these .pem file into my trust stores but it still didn't work

[webprofusion-chrisc]

The solution I'd suggest is to add PfxBuilder .AddIssuers method to add each cert (from Der format bytes) you will rely on for the PFX build (typically the intermediates and the trusted root). This is what we do in Certify The Web, which also uses certes.

[lovachen]

same