# Error messages on scripts (with verbosity =0)

**URL:** <https://community.freefem.org/t/error-messages-on-scripts-with-verbosity-0/4388>\
**Category:** General Discussion\
**Created:** [October 15, 2026, 4:41pm UTC](https://community.freefem.org/t/error-messages-on-scripts-with-verbosity-0/4388 "2026-10-15T16:41:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![buddleia](https://avatars.discourse-cdn.com/v4/letter/b/5daacb/32.png) [@buddleia](https://community.freefem.org/u/buddleia)\
**Post date:** [October 15, 2026, 4:41pm UTC](https://community.freefem.org/t/error-messages-on-scripts-with-verbosity-0/4388/1 "2026-10-15T16:41:55Z")

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Hello,

when I compile script, even with verbosity =0 I meet plenty of messages like

error operator \* \<10LinearCombI7MGauche4C\_F0E\>, \<10LinearCombI7MGauche4C\_F0E\>

Where is a documentation allowing to understand these messages ?

JLuc

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**Author:** ![fb77](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/fb77/32/3796_2.png) [@fb77](https://community.freefem.org/u/fb77)\
**Post date:** [October 16, 2026, 8:13am UTC](https://community.freefem.org/t/error-messages-on-scripts-with-verbosity-0/4388/2 "2026-10-16T08:13:54Z")

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Hello,

There is no documentation on such error messages. Here it indicates that an expression you write is invalid. In the output message you should have the line number refering to your code. You have to check this line, and look at some examples in order to understand how to write a correct form.