# \[400\] Bad request - Parsing Error on /\_field\_caps

**URL:** <https://discuss.elastic.co/t/400-bad-request-parsing-error-on-field-caps/275303>\
**Category:** Elasticsearch\
**Created:** [June 8, 2021, 1:16pm UTC](https://discuss.elastic.co/t/400-bad-request-parsing-error-on-field-caps/275303 "2021-06-08T13:16:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bcros](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bcros/32/89825_2.png) [@bcros](https://discuss.elastic.co/u/bcros)\
**Post date:** [June 8, 2021, 1:16pm UTC](https://discuss.elastic.co/t/400-bad-request-parsing-error-on-field-caps/275303/1 "2021-06-08T13:16:33Z")

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Hello,  
After \_reindex, i have the HTTP 400 error with response below, when trying to call `/_field_caps?fields=*`  
or `/target/_field_caps?fields=*`, whatever target is.  
Anyone have an idea how to fix this ?  
Did i miss something?  
Elastic 7.9.3. thank you all.  
Bruno

`{ "error": { "root_cause": [{ "type": "parsing_exception", "reason": "request does not support [query]", "line": 2, "col": 3 } ], "type": "parsing_exception", "reason": "request does not support [query]", "line": 2, "col": 3 }, "status": 400 }`

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<div class="post-metadata">

**Author:** ![bcros](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bcros/32/89825_2.png) [@bcros](https://discuss.elastic.co/u/bcros)\
**Post date:** [July 5, 2021, 11:04am UTC](https://discuss.elastic.co/t/400-bad-request-parsing-error-on-field-caps/275303/2 "2021-07-05T11:04:50Z")

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Actually, i guess issue is not linked with \_reindex. Looking a t the code, my feeling is that an index is not correctly build and the code falls in a parsing error, whatever index you ask, like if no scope is applied to process fields.  
Any suggestion are welcome.  
Bruno

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 2, 2021, 11:05am UTC](https://discuss.elastic.co/t/400-bad-request-parsing-error-on-field-caps/275303/3 "2021-08-02T11:05:45Z")

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