# Unhandled rejection (SystemJS) Expected

**URL:** <https://discourse.aurelia.io/t/unhandled-rejection-systemjs-expected/3460>\
**Category:** Help Requests\
**Created:** [May 4, 2020, 1:41pm UTC](https://discourse.aurelia.io/t/unhandled-rejection-systemjs-expected/3460 "2020-05-04T13:41:28Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![saidavali](https://avatars.discourse-cdn.com/v4/letter/s/d07c76/32.png) [@saidavali](https://discourse.aurelia.io/u/saidavali)\
**Post date:** [May 4, 2020, 1:41pm UTC](https://discourse.aurelia.io/t/unhandled-rejection-systemjs-expected/3460/1 "2020-05-04T13:41:28Z")

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Hi i am getting error while running code only in IE but in edge it is working fine.

 ![ie-error](https://canada1.discourse-cdn.com/flex027/uploads/aurelia/original/2X/f/f961d6cdc43c65ff5b54065cd78a4e2894650507.png)  
I am unable to know the details.  
Can some one help me.

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**Author:** ![huochunpeng](https://avatars.discourse-cdn.com/v4/letter/h/49beb7/32.png) [@huochunpeng](https://discourse.aurelia.io/u/huochunpeng)\
**Post date:** [May 5, 2020, 3:41am UTC](https://discourse.aurelia.io/t/unhandled-rejection-systemjs-expected/3460/2 "2020-05-05T03:41:33Z")

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You have very old setup using jspm\_packages, it’s kind of unsupported now.

Please consider to migrate to an app created by aurelia-cli.

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<div class="post-metadata">

**Author:** ![saidavali](https://avatars.discourse-cdn.com/v4/letter/s/d07c76/32.png) [@saidavali](https://discourse.aurelia.io/u/saidavali)\
**Post date:** [May 5, 2020, 10:50am UTC](https://discourse.aurelia.io/t/unhandled-rejection-systemjs-expected/3460/3 "2020-05-05T10:50:11Z")

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Previously it used to work in IE also i upgraded dependencies related to babel and gulp but not updated anything related Aurelia.  
here is the up-gradation show

 ![package-json](https://canada1.discourse-cdn.com/flex027/uploads/aurelia/original/2X/e/e145592cbcfd56023c408d668948c63e700fd0d8.png)