# Management canister : install\_code interface

**URL:** https://forum.dfinity.org/t/management-canister-install-code-interface/9691
**Category:** Language Support
**Created:** [December 15, 2021, 12:40pm UTC](https://forum.dfinity.org/t/management-canister-install-code-interface/9691 "2021-12-15T12:40:33Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![C-B-Elite](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/c-b-elite/32/34356_2.png) [@C-B-Elite](https://forum.dfinity.org/u/C-B-Elite)
#### Post date: [December 15, 2021, 12:40pm UTC](https://forum.dfinity.org/t/management-canister-install-code-interface/9691/1 "2021-12-15T12:40:33Z")

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I’m trying to wirte a canister that can store the wasm blob so that we can install the wasm greater than 2M to the canister by using the management canister interface (I use the motoko). But I meet the follow errors:

 ![73B8E2208B8296DFFCF65CE9AC7769A4](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/2X/a/adf64e43be981deb8eb6efde6c182dcfb75a637c.jpeg)  
 ![BA4E6460BBB5197E6BF58E89072F8D23](https://us1.discourse-cdn.com/flex023/uploads/dfn/original/2X/3/39bdeee99b57bc0c105433b73a9434f4e847224c.jpeg)  
Are these wasm format errors?

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### Author: ![nomeata](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/nomeata/32/733_2.png) [@nomeata](https://forum.dfinity.org/u/nomeata)
#### Post date: [December 15, 2021, 7:19pm UTC](https://forum.dfinity.org/t/management-canister-install-code-interface/9691/2 "2021-12-15T19:19:58Z")

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Yes, very likely the `wasm_module` argument to `install_code` isn’t a valid binary wasm module blob.