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Apple User Help

Unable to restore a deleted app from App Store Connect

I had deleted an app for our beta bundle ID from App Store Connect a few months ago. Now I am trying to restore it. But I am getting the following error. Can anyone help me in understanding this or let me know how to restore it back? Because I really don’t want to create […]

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Apple User Help

cronjobs do not run

I have recently switched from Ubuntu to MacOS. I tried to run the exact same cronjobs I ran on Ubuntu before, however they don’t, and after trying to figure out if the crontab entries might have any errors, I more and more had the suspicion that cronjobs don’t run on my MBP at all, so […]

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Raspberry Pi User Help

Wiring RPi with both a DHT 22 sensor and a fan set in slow cooling mode and getting data

I want to connect both a fan, set in slow cooling mode, and a DHT22 sensor to my RPi. My wirings: fan in cooling mode: power wire: connected to pin 17 ground wire: connected to pin 20 and it works fine. Now I want to add a DHT22 sensor, whose vendor sent me the connection […]

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Database Development

Passing in multiple instances into the dbatools command GET-DBADBFILE

I am attempting to gather all of the dbfile information on all of our sql instances in one of our environments. It is a fairly large environment and would be tedious to perform one instance at a time. I thought there would be an easy way to do this with Powershell but I seem to […]

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Database Development

MySQL / MariaDB – Start multi-source replication with mariabackup (xtrabackup)

Many times I successfully performed procedure described in the https://mariadb.com/kb/en/setting-up-a-replication-slave-with-mariabackup/ – it’s fastest and easiest because replica is restored by copying files and binlog coordinates for CHANGE MASTER are saved in xtrabackup_binlog_info file. With multi-source replication it seems to be not possible, because both backups from masters contain their own ibdata1 file – so I […]

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Ask Games RPG Games

Summoning a large group of the same kind of creatures

I am writing a novel and have a question regarding an incident that happens in my book. In it some very bad characters steal a very large group, say 100 head of cattle. Is that a translocation spell, they are moving them En mass from one area to another, or a group summoning? Some of […]

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Ask Chemistry

Question on Zeeman effect & magnetic field strength

Could anyone kindly provide guidance on the following question? What formulae to use, etc.(if you can’t directly answer it)

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Bitcoin Cryptocurrency Mastering Development

Anyone tried building bitcoin core with visual studio 2019?

I followed the steps mentioned in the below link: https://github.com/bitcoin/bitcoin/tree/master/build_msvc Trying to build from https://github.com/bitcoin/bitcoin/tree/0.20 Errors: Error C1083 Cannot open include file: ‘QApplication’: No such file or directory bitcoin-qt \bitcoin-0.20.1\src\qt\bitcoin.h 12 Error MSB3073 The command “C:\Qt5.9.8_x64_static_vs2019\bin\moc.exe “..\..\src\qt\test\addressbooktests.h” -o .\QtGeneratedFiles\qt\moc\moc_addressbooktests.cpp” exited with code 3. test_bitcoin-qt \bitcoin-0.20.1\build_msvc\test_bitcoin-qt\test_bitcoin-qt.vcxproj 103 Error MSB3073 The command “C:\Qt5.9.8_x64_static_vs2019\bin\moc.exe “..\..\src\qt\bitcoinamountfield.cpp” -o .\QtGeneratedFiles\qt\bitcoinamountfield.moc” exited […]

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Cryptocurrency Ethereum Mastering Development

Understanding gas tokens and create2

I am going through a sample gas token code on Ethereum. The token mints some dummy smart contracts using CREATE2 and then calculates the address later on destroys them to get gas refund. Minting part looks like this assembly { mstore(0, 0x746d4946c0e9F43F4Dee607b0eF1fA1c3318585733ff6000526015600bf30000) for {let i := div(value, 32)} i {i := sub(i, 1)} { pop(create2(0, […]

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Linux Mastering Development

ssh session freezing when connecting via router

My ssh sessions to my virtual machines keep freezing/dropping/locking up. I never had any problems with any of my other machines, which I ssh to/from regularly. I am only having probems when sshing to this VM, and only when I ssh via a router. This is to say that – If I connect from the […]