# Niffler, An out-of-the-box open sourced Grin GUI Wallet

**URL:** <https://forum.grin.mw/t/niffler-an-out-of-the-box-open-sourced-grin-gui-wallet/4760>\
**Category:** Development and Technical Discussion\
**Created:** [April 8, 2019, 1:36am UTC](https://forum.grin.mw/t/niffler-an-out-of-the-box-open-sourced-grin-gui-wallet/4760 "2019-04-08T01:36:02Z")\
**Posts on this page:** 1\
**Showing post:** 60

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**Author:** ![Miki](https://avatars.discourse-cdn.com/v4/letter/m/df788c/32.png) [@Miki](https://forum.grin.mw/u/Miki)\
**Post date:** [June 26, 2019, 5:58pm UTC](https://forum.grin.mw/t/niffler-an-out-of-the-box-open-sourced-grin-gui-wallet/4760/60 "2019-06-26T17:58:12Z")

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[xiaojay] please help to understand. green purse isn’t working and I installed a niffler … I entered the code for green purse and niffler worked. the attempt to send the transaction 1 green on poloniex my money is blocked… your wallet writes available 0 and everything else is blocked. what did I do wrong? Poloniex sent with Slate 0 file  
an hour later as soon as I canceled the transaction all unlocked … sorry to bother you. I don’t understand.  
is it possible to send to poloniex?

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