Showing results for 
Search instead for 
Did you mean: 
Sign up Log in
It's not the same without you

Join the community to find out what other Atlassian users are discussing, debating and creating.

Atlassian Community Hero Image Collage

json.decoder.JSONDecodeError when trying to run my pipeline

I'm getting an error when trying to run my pipeline.  It's complaining about wanting a comma delimiter, but I don't know what file it's got a problem with.

Status: Downloaded newer image for bitbucketpipelines/firebase-deploy:1.0.0
DEBUG: Starting new HTTPS connection (1):
DEBUG: "GET /bitbucketpipelines/official-pipes/raw/master/ HTTP/1.1" 200 None
INFO: Executing the pipe...
Traceback (most recent call last):
File "/", line 170, in <module>
File "/", line 68, in run
data = json.load(f)
File "/usr/local/lib/python3.7/json/", line 296, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "/usr/local/lib/python3.7/json/", line 348, in loads
return _default_decoder.decode(s)
File "/usr/local/lib/python3.7/json/", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/local/lib/python3.7/json/", line 353, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting ',' delimiter: line 14 column 41 (char 312)


Here's my pipeline config:

image: cirrusci/flutter

- step:
name: Run unit tests
- flutter test
- step:
name: Build web
- flutter build web
- step:
name: Deploy to Firebase
deployment: production
- pipe: atlassian/firebase-deploy:1.0.0
PROJECT_ID: t4c-companion
DEBUG: 'true'


1 answer

1 accepted

0 votes
Answer accepted

@hanskokx this error means that your firebase.json does not satisfy json format. Check it out, perhaps, there is something you forgot to put or extra character. If you want , you also can share it here in the question.

You could make a mistake by forgetting , delimiter between list elements for example.

Example of firebase.json is (example is multisite, but you review your file according to your requirements):

"hosting": [
"target": "your-site",
"public": "public",
"ignore": ["firebase.json","**/.*","**/node_modules/**"]
"target": "your-site-2",
"public": "public",
"ignore": ["firebase.json", "**/.*","**/node_modules/**"]


Regards, Galyna

I had a rogue comment in my json file - I bet that's what caused the problem.  I'm going to remove it and test again.  Good catch!

I guess I'll have to wait a few days until I have more build minutes to know if that fixed it.  🤣

Like Halyna Berezovska likes this

@hanskokx I have to mention, that if you need more build minutes and often run out of free build minutes, you could upgrade your plan :)

Be aware , that the pricing paid for new plan is there in workspace settings and you can evaluate if this plan is worth for this current project you're working on.

You can also check full pricing list here .

Regards, Galyna

This is the only time I've ran out of build minutes (because I was constantly testing CI/CD changes).  Since my app doesn't really make me any money, I haven't felt a strong desire to upgrade my plan to something paid. ;)

However, I can confirm that the invalid json (e.g., having a comment in the code) was the cause for failure.  We're all set now!

Like Halyna Berezovska likes this

Suggest an answer

Log in or Sign up to answer
Community showcase
Published in Bitbucket

📣 Calling Bitbucket Data Center customers to participate in research

Hi everyone, Are you Bitbucket DC customer? If so, we'd love to talk to you! Our team wants to dive deep to understand your long-term plans regarding Bitbucket DC and Atlassian Cloud. Do you plan...

188 views 2 4
Read article

Community Events

Connect with like-minded Atlassian users at free events near you!

Find an event

Connect with like-minded Atlassian users at free events near you!

Unfortunately there are no Community Events near you at the moment.

Host an event

You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events

Events near you