{"id":896,"date":"2017-04-09T03:12:00","date_gmt":"2017-04-09T03:12:00","guid":{"rendered":"http:\/\/www.talkcrypto.org\/blog\/?p=896"},"modified":"2017-04-09T05:04:37","modified_gmt":"2017-04-09T05:04:37","slug":"geth-attach-on-testnet-error","status":"publish","type":"post","link":"https:\/\/www.talkcrypto.org\/blog\/2017\/04\/09\/geth-attach-on-testnet-error\/","title":{"rendered":"geth attach on testnet error"},"content":{"rendered":"

If you are trying to run the command geth attach and you get this error<\/p>\n

> Fatal: Unable to attach to remote geth: dial unix \/Users\/<username>\/Library\/Ethereum\/geth.ipc: connect: no such file or directory<\/pre>\n
it is because geth cannot find the file geth.ipc. This typically happens when you have run geth –testnet. This file gets generated at run time.<\/p>\n
To fix this, run geth attach with the additional ipc command. ie<\/p>\n
> geth attach ipc:\/Users\/<username>\/Library\/Ethereum\/testnet\/geth.ipc<\/pre>\n
and that should do the trick!<\/p>\n
\"\"<\/p>\n
Installing Solidity on OSX<\/h3>\n
If you are trying to install Solidity on OSX these are the commands you need to run.<\/p>\n
brew<\/span> update<\/span>\r\nbrew<\/span> upgrade<\/span>\r\nbrew<\/span> tap<\/span> ethereum<\/span>\/<\/span>ethereum<\/span>\r\nbrew<\/span> install<\/span> solidity<\/span>\r\nbrew<\/span> linkapps<\/span> solidity<\/span><\/pre>\n
If you get this error:<\/p>\n
==> Installing solidity from ethereum\/ethereum\r\nError: You must `brew link cmake` before ethereum\/ethereum\/solidity can be installed<\/pre>\n
it means you need to run “brew link cmake” as instructed. If you run brew doctor you will find a similar reason.<\/p>\n
Warning: You have unlinked kegs in your Cellar\r\nLeaving kegs unlinked can lead to build-trouble and cause brews that depend on\r\nthose kegs to fail to run properly once built. Run `brew link` on these:\r\n\u00a0 cmake<\/pre>\n
The tricky part is that when you run “brew link cmake” you might encounter this error:<\/p>\n
Linking \/usr\/local\/Cellar\/cmake\/3.7.2_1... \r\nError: Could not symlink share\/emacs\/site-lisp\/cmake\r\n\/usr\/local\/share\/emacs\/site-lisp is not writable.<\/pre>\n
To fix this, run<\/p>\n
sudo chown -R cloudnthings \/usr\/local\/share\/emacs\/site-lisp\/\r\nsudo chmod -R u+w \/usr\/local\/share\/emacs\/site-lisp\/<\/pre>\n
This should then result in:<\/p>\n
cloudnthings:~ cloudnthings$ brew link cmake\r\nLinking \/usr\/local\/Cellar\/cmake\/3.7.2_1... 28 symlinks created<\/pre>\n
Success!<\/p>\n
References:<\/p>\n