# Uncaught ReferenceError: Fingerprint2 is not defined **URL:** \ **Category:** Product Support\ **Created:** [December 22, 2016, 10:32am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941 "2016-12-22T10:32:23Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![Carles](https://avatars.discourse-cdn.com/v4/letter/c/c67d28/32.png) [@Carles](https://forum.mautic.org/u/Carles)\ **Post date:** [December 22, 2016, 10:32am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/1 "2016-12-22T10:32:23Z")
Hi! I’m new in Mautic and I’m trytint to set it up. Followint the gettins started documentation I’ve installed the Tracking Javascript in our website but I think I did something wrong. This is the message of the web browser Uncaught ReferenceError: Fingerprint2 is not defined at Object.m.sendPageview (mtc.js:61) at mtc.js:62 at mtc.js:62 Can somebody help me? Thanks ---
**Author:** ![Carles](https://avatars.discourse-cdn.com/v4/letter/c/c67d28/32.png) [@Carles](https://forum.mautic.org/u/Carles)\ **Post date:** [December 22, 2016, 10:32am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/2 "2016-12-22T10:32:23Z")
Hi! I’m new in Mautic and I’m trytint to set it up. Followint the gettins started documentation I’ve installed the Tracking Javascript in our website but I think I did something wrong. This is the message of the web browser Uncaught ReferenceError: Fingerprint2 is not defined at Object.m.sendPageview (mtc.js:61) at mtc.js:62 at mtc.js:62 Can somebody help me? Thanks ---
**Author:** ![lucasmmendes](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@lucasmmendes](https://forum.mautic.org/u/lucasmmendes)\ **Post date:** [December 29, 2016, 9:57pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/3 "2016-12-29T21:57:16Z")
I have the same problem here inserting the Tracking script on a Moodle website. Uncaught ReferenceError: Fingerprint2 is not defined at Object.m.sendPageview (pages.\*\*\*\*\*\*\*\*.com.br/mtc.js:61) at pages._**.com.br/mtc.js:62 at pages.**_.com.br/mtc.js:62 ---
**Author:** ![lucasmmendes](https://avatars.discourse-cdn.com/v4/letter/l/cdc98d/32.png) [@lucasmmendes](https://forum.mautic.org/u/lucasmmendes)\ **Post date:** [December 30, 2016, 12:28am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/4 "2016-12-30T00:28:55Z")
I found that this is a Fingerprint2 error. Follows link about it: [https://github.com/Valve/fingerprintjs2/pull/202](https://github.com/Valve/fingerprintjs2/pull/202) But I still did not fixed it here. Best wishes, Lucas ---
**Author:** ![mudit](https://avatars.discourse-cdn.com/v4/letter/m/5f8ce5/32.png) [@mudit](https://forum.mautic.org/u/mudit)\ **Post date:** [February 1, 2017, 1:02pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/5 "2017-02-01T13:02:55Z")
I’m also facing same issue. @escopecz : a little help here. ---
**Author:** ![DerekBuntin](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/derekbuntin/32/90_2.png) [@DerekBuntin](https://forum.mautic.org/u/DerekBuntin)\ **Post date:** [February 23, 2017, 12:10pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/6 "2017-02-23T12:10:27Z")
Same issue here, still not resolved? ---
**Author:** ![mudit](https://avatars.discourse-cdn.com/v4/letter/m/5f8ce5/32.png) [@mudit](https://forum.mautic.org/u/mudit)\ **Post date:** [February 23, 2017, 12:12pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/7 "2017-02-23T12:12:01Z")
This is happening for webapps using requireJs. ---
**Author:** ![chenlev](https://avatars.discourse-cdn.com/v4/letter/c/f19dbf/32.png) [@chenlev](https://forum.mautic.org/u/chenlev)\ **Post date:** [February 27, 2017, 6:46pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/8 "2017-02-27T18:46:49Z")
Same for me, on a sub-domain. Works fine for the main domain See [https://www.zuznow.com/](https://www.zuznow.com/) (fine) [http://lp.zuznow.com/solve-browser-compatibility/](http://lp.zuznow.com/solve-browser-compatibility/) Uncaught ReferenceError: Fingerprint2 is not defined at Object.m.handleFingerprintInit (mtc.js:76) at Object.m.sendPageview (mtc.js:75) at mtc.js:77 at mtc.js:77 ---
**Author:** ![DerekBuntin](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/derekbuntin/32/90_2.png) [@DerekBuntin](https://forum.mautic.org/u/DerekBuntin)\ **Post date:** [March 22, 2017, 8:15pm UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/9 "2017-03-22T20:15:53Z")
Since @chenlev provided information that it works on the main domain but not a subdomain I can only assume the fingerprint library is not loading, so I went to cdnjs deliver and referenced the file in the header and the issue is resolved. ```auto https://cdnjs.cloudflare.com/ajax/libs/fingerprintjs2/1.5.0/fingerprint2.min.js ``` Of course, it would make complete sense that any required libraries are installed and working with mautic and it’s associated scripts without the need to manually installing the dependent scripts separately. ---
**Author:** ![frank](https://avatars.discourse-cdn.com/v4/letter/f/3d9bf3/32.png) [@frank](https://forum.mautic.org/u/frank)\ **Post date:** [March 29, 2017, 9:53am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/10 "2017-03-29T09:53:46Z")
Hi @DerekBuntin i’m having this exact same issue. Did you simply add in the header and it worked? Thanks ---
**Author:** ![DerekBuntin](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/derekbuntin/32/90_2.png) [@DerekBuntin](https://forum.mautic.org/u/DerekBuntin)\ **Post date:** [April 2, 2017, 7:43am UTC](https://forum.mautic.org/t/uncaught-referenceerror-fingerprint2-is-not-defined/6941/11 "2017-04-02T07:43:12Z")
@frank that’s correct, I added it to the header of the main website header.