E026Error
Input is UTF-16/UTF-32 encoded
The bytes look like UTF-16 or UTF-32, not UTF-8.
What it means
JSON should be encoded as UTF-8. Files saved as "Unicode" by some Windows tools are actually UTF-16, which shows up as null bytes between characters and cannot be parsed as UTF-8.
Example
Invalid
(file saved as UTF-16/"Unicode")
Valid
(re-save the file as UTF-8)
How to fix it
Re-save or convert the input to UTF-8.
Validate your JSON to see this and every other issue highlighted in one pass.
Diagnostics on this page come from @jsonlint/core, the open-source engine that powers the JSONLint validator. Install it with npm install @jsonlint/core.