# Aurelia Upgrade to newest version broke app

**URL:** <https://discourse.aurelia.io/t/aurelia-upgrade-to-newest-version-broke-app/2886>\
**Category:** Help Requests\
**Created:** [September 2, 2019, 10:11am UTC](https://discourse.aurelia.io/t/aurelia-upgrade-to-newest-version-broke-app/2886 "2019-09-02T10:11:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![radenkozec](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.aurelia.io/radenkozec/32/1544_2.png) [@radenkozec](https://discourse.aurelia.io/u/radenkozec)\
**Post date:** [September 2, 2019, 10:11am UTC](https://discourse.aurelia.io/t/aurelia-upgrade-to-newest-version-broke-app/2886/1 "2019-09-02T10:11:12Z")

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I just upgraded to latest version Aurelia and did not upgraded for a year. Application broke with error:

> Parser Error: Invalid start of expression at column 0 in expression

Any help?

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**Author:** ![bigopon](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.aurelia.io/bigopon/32/18_2.png) [@bigopon](https://discourse.aurelia.io/u/bigopon)\
**Post date:** [September 2, 2019, 10:42am UTC](https://discourse.aurelia.io/t/aurelia-upgrade-to-newest-version-broke-app/2886/2 "2019-09-02T10:42:12Z")

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I remember seeing similar issues when people upgraded. This is an oversight that we didn’t catch during v1 -\> v2 of binding release. Can you please check around to see if you have something like:

```auto
<div click.trigger="">
<div click.delegate="">
<div click.capture="">

```

Basically an empty expression, normally it’s only overlooked inside an event handler

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<div class="post-metadata">

**Author:** ![radenkozec](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.aurelia.io/radenkozec/32/1544_2.png) [@radenkozec](https://discourse.aurelia.io/u/radenkozec)\
**Post date:** [September 2, 2019, 10:53am UTC](https://discourse.aurelia.io/t/aurelia-upgrade-to-newest-version-broke-app/2886/3 "2019-09-02T10:53:58Z")

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Thank you big time. You fixed my issue.