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Monerod was working correctly, but suddenly stopped. I tried downloading the latest version (monero-gui-0.11.0.0) in the hopes that that would solve the problem, but it doesn't. When I try to start the program through the terminal rather than via the GUI, I am told the program doesn't exist even though the ls command shows it very clearly.

I am running Ubuntu 14.04, and was doing so when it worked correctly earlier.

The bitmonero.log says: 2017-09-14 10:57:06.331 7f1519564780 INFO logging contrib/epee/src/mlog.cpp:148 New log categories: *:WARNING,net:FATAL,net.p2p:FATAL,net.cn:FATAL,global:INFO,verify:FATAL,stacktrace:INFO,logging:INFO,msgwriter:INFO 2017-09-14 10:57:06.331 7f1519564780 ERROR msgwriter src/common/scoped_message_writer.h:102 Error: Couldn't connect to daemon: 127.0.0.1:18081 And the monero-wallet-gui. log says: 2017-09-14 10:56:52.394 7fab3bc417c0 INFO logging contrib/epee/src/mlog.cpp:148 New log categories: *:WARNING,net:FATAL,net.p2p:FATAL,net.cn:FATAL,global:INFO,verify:FATAL,stacktrace:INFO,logging:INFO,msgwriter:INFO 2017-09-14 10:56:52.792 7fab3bc417c0 INFO logging contrib/epee/src/mlog.cpp:156 New log categories: *:WARNING,net:FATAL,net.p2p:FATAL,net.cn:FATAL,global:INFO,verify:FATAL,stacktrace:INFO,logging:INFO,msgwriter:INFO 2017-09-14 10:56:52.991 7fab3bc417c0 INFO logging contrib/epee/src/mlog.cpp:156 New log categories: *:WARNING,net:FATAL,net.p2p:FATAL,net.cn:FATAL,global:INFO,verify:FATAL,stacktrace:INFO,logging:INFO,msgwriter:INFO 2017-09-14 10:56:53.037 7fab1bfff700 ERROR net.http contrib/epee/include/storages/portable_storage.h:161 portable_storage: wrong binary format - signature mismatch 2017-09-14 10:56:53.037 7fab1bfff700 ERROR wallet.wallet2 src/wallet/wallet2.cpp:2128 !r. THROW EXCEPTION: error::invalid_password 2017-09-14 10:56:53.037 7fab1bfff700 WARN net.http src/wallet/wallet_errors.h:707 /home/vagrant/slave/monero-core-ubuntu-amd64/build/monero/src/wallet/wallet2.cpp:2128:N5tools5error16invalid_passwordE: invalid password 2017-09-14 10:56:53.038 7fab1bfff700 ERROR WalletAPI src/wallet/api/wallet.cpp:504 Error opening wallet: invalid password 2017-09-14 10:56:53.077 7fab1bfff700 ERROR WalletAPI src/wallet/api/wallet.cpp:553 Status_Critical - not storing wallet 2017-09-14 10:57:04.550 7fab1b7fe700 WARN net.dns src/common/dns_utils.cpp:487 WARNING: no two valid MoneroPulse DNS checkpoint records were received

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I am told the program doesn't exist even though the ls command shows it very clearly.

Need more info here. Sounds like monerod is just not in your $PATH perhaps? If so, you need to use the full path to the executable.

monero-wallet-gui. log says...

I see invalid password in the log, have you checked for sure that the password is correct? (remove all special characters / symbols to test). Are you even using a username / password?

Are you sure that monerod is configured to accept incoming RPC on IP 127.0.0.1 and port 18081? (the default)

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  • Thank you. The invalid password was a mistype and was fixed on the next try. The settings page of the GUI definatly says localhost and 1881 for the port. As nearly as I can tell from the logs, I am attempting to access 127.0.0.1. I have two Ubuntu 14.04 computers, and the same problem occurs on both. But I am also running a machine on Archlinux/Mate and the GUI and block chain work great on it, so the problem seems to be related to Ubuntu.
    – user592440
    Sep 22, 2017 at 14:46
  • @user592440 If the password is fixed, please replace log message above with the current one. If the same setup works on another Linux machine, then it might be a firewall (like ufw) blocking the port? I recommended the simple password because I once configured a password using # char and didn't realize it was being interpreted as a comment in the config file ;-)
    – Jonathan Cross
    Sep 23, 2017 at 12:57

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