In case somebody got the following error:
Drupal\Component\Serialization\Exception\InvalidDataTypeException: The reserved indicator "@" cannot start a plain scalar; you need to quote the scalar at line 4

you need to put quotes around the arguments in mcapi.services.yml file.

Sorry I was in a rush and could not make a patch file.
Thanks

CommentFileSizeAuthor
#2 the_reserved_indicator-2902437-2.patch779 bytes0Sarah0Al
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Sarahphp1 created an issue. See original summary.

0Sarah0Al’s picture

0Sarah0Al CreditAttribution: 0Sarah0Al commented
FileSize
the_reserved_indicator-2902437-2.patch779 bytes

Here is the patch.

matslats’s picture

matslats CreditAttribution: matslats as a volunteer commented
Status: Active » Fixed

Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.