# Freedom-e-sdk cann't install toolchain

**URL:** <https://forums.sifive.com/t/freedom-e-sdk-cannt-install-toolchain/714>\
**Category:** HiFive1 Rev B\
**Created:** [August 28, 2017, 3:34am UTC](https://forums.sifive.com/t/freedom-e-sdk-cannt-install-toolchain/714 "2017-08-28T03:34:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ling](https://avatars.discourse-cdn.com/v4/letter/l/c2a13f/32.png) [@ling](https://forums.sifive.com/u/ling)\
**Post date:** [August 28, 2017, 3:34am UTC](https://forums.sifive.com/t/freedom-e-sdk-cannt-install-toolchain/714/1 "2017-08-28T03:34:41Z")

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hello, today I download the freedom-e-sdk from github in my new ubuntu system, but when I use the command make tools , it creat a error like the picture, how can I solve this problem???

 ![](https://us1.discourse-cdn.com/flex020/uploads/sifive/original/1X/a4ccf25135ffaff68899c186fffe50b8c51afe68.png)

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**Author:** ![dagema](https://sea2.discourse-cdn.com/flex020/user_avatar/forums.sifive.com/dagema/32/59_2.png) [@dagema](https://forums.sifive.com/u/dagema)\
**Post date:** [August 28, 2017, 8:27am UTC](https://forums.sifive.com/t/freedom-e-sdk-cannt-install-toolchain/714/2 "2017-08-28T08:27:11Z")

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You need to insure that your Ubuntu has all of the required packages installed. I see for example that you have not installed bison, which is required. You can read all about the requirements in the [**README**](https://github.com/sifive/freedom-e-sdk) file 😏