Topic: *** Complete Guide on How to Create a New Alt Coin *** - page 7. (Read 165958 times)

i have managed to set to work a version 8.7 or something like that, but i cant do it with the last version, stuck in the genesis block, i have generated some hash that dont throw the assert, but it seems they are not right because when i run ./litecoind sometimes gives an error that cant find the best block; or cant read the block (when this happens i reindex and dont throw any error but stay like running but do nothing)

with this I try to generate the genesis block, but never do more than 1 iteration, and cant be rigth, it should take a while to find the nonce
the hash function pass the assert, but it gives me then some of the errors mentioned above

anyone can tell me , i want have  etc 1000,000 coin for developer or miner first (me-make coin) ,what name file i can change ? thank you

  only like 1000 times so far.  welcome to the party

Is there anyone who produces his own coin in this way?

Hi,
Does anyone know what my error means when I start litecoin-qt
debug.log:
ERROR: ReadBlockFromDisk: Errors in block header at CBlockDiskPos(nFile=0, nPos=602)
*** Failed to read block
Error Message when starting:
Error: An severe internal Error occured, see debug.log for details
Any Help would be apprecitaed
Thanks in advance

thanks for the infoemations great help

lol, glad to see people still interested in my "how-to" 4 years ago 

Sorry, little english ...
Like this?: https://github.com/ledgerlabs/ethereum-getting-started/wiki/local-node
No need to fork, just start a new chain.

That is cool ,any guide on how to fork ETH?

 
YOU FIX MY BOOST PROBLEM THANKS!!
 

right now seraching to fix this:

c:\test\coin-master\src/txdb-leveldb.h:119: undefined reference to `leveld
b::Status::ToString() const'
collect2.exe: error: ld returned 1 exit status
make: *** [coind.exe] Error 1

 


*EDIT: leveldb recompiled in windows... WORKS FINE NOW!

Indeed:


g++ -Wl,--large-address-aware -static -static-libgcc -static-libstdc++ -Wl,-s -mthreads -Wl,-subsystem,windows -o release\Coin-qt.exe object_script.Coin
-qt.Release  -L"c:\Qt\4.8.5\lib" -lmingwthrd -lmingw32 -lqtmain build\bitcoin-qt_res.o -LC:/deps/miniupnpc -lminiupnpc -liphlpapi  -lshlwapi -LC:/deps/boost_1_5
5_0/stage/lib -LC:/deps/db-4.8.30.NC/build_unix -LC:/deps/openssl-1.0.1j -LC:/deps/qrencode-3.4.4/.libs -lssl -lcrypto -ldb_cxx -lws2_32 -lshlwapi -lmswsock -lo
le32 -loleaut32 -luuid -lgdi32 -lboost_system-mgw47-mt-sd-1_53 -lboost_filesystem-mgw47-mt-sd-1_53 -lboost_program_options-mgw47-mt-sd-1_53 -lboost_thread-mgw47
-mt-sd-1_53 -lboost_chrono-mgw47-mt-sd-1_53 -lQtGui4 -lQtCore4
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -ldb_cxx
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_system-mgw47-mt-sd-1_53


perhaps you'll have better luck with something like mgw49-mt-sd-1_55 or near offer.

The resolution lies in the .pro file, look for where BOOST_LIB_SUFFIX is bound and ensure the numbers match the versions of the installed mingw and boost packages.

Cheers

Graham

You can always use older versions of the sources
and then the old guides will work - sort of, there are sometimes
intentional blanks and errors. But you ought to have some
understanding of what you are doing anyway. That is, you need a basic
knowledge of C++ and programming, otherwise you will
get stuck time and again.

The drawback in the older versions of the software is that they
may have security issues, so they're not fit for production
(launching your own coin) but for the learning purposes they are just fine.

In fact, for learning, the earlier the source, the better.

The location of the blockchain parameters has been moved in the recent codebases. All the instructions and guides dating back from 2014 have become obsolete, for Litecoin releases based off Bitcoin 0.13 and later.
Cloning methods for the recent Litecoin version is a work-in-progress, a part of our learning process at the Practice Coin project https://bitcointalksearch.org/topic/annpra-practice-coin-learn-by-doing-1850047
  Tearo

Hello Friends!!!

Following this guide and trying to compile my coin in windows i get this error msgs:

g++ -Wl,--large-address-aware -static -static-libgcc -static-libstdc++ -Wl,-s -mthreads -Wl,-subsystem,windows -o release\Coin-qt.exe object_script.Coin
-qt.Release  -L"c:\Qt\4.8.5\lib" -lmingwthrd -lmingw32 -lqtmain build\bitcoin-qt_res.o -LC:/deps/miniupnpc -lminiupnpc -liphlpapi  -lshlwapi -LC:/deps/boost_1_5
5_0/stage/lib -LC:/deps/db-4.8.30.NC/build_unix -LC:/deps/openssl-1.0.1j -LC:/deps/qrencode-3.4.4/.libs -lssl -lcrypto -ldb_cxx -lws2_32 -lshlwapi -lmswsock -lo
le32 -loleaut32 -luuid -lgdi32 -lboost_system-mgw47-mt-sd-1_53 -lboost_filesystem-mgw47-mt-sd-1_53 -lboost_program_options-mgw47-mt-sd-1_53 -lboost_thread-mgw47
-mt-sd-1_53 -lboost_chrono-mgw47-mt-sd-1_53 -lQtGui4 -lQtCore4
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -ldb_cxx
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_system-mgw47-mt-sd-1_53
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_filesystem-mgw47-mt-sd-1_53
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_program_options-mgw47-mt-sd-1_53
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_thread-mgw47-mt-sd-1_53
C:/mingw32/bin/../lib/gcc/i686-w64-mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lboost_chrono-mgw47-mt-sd-1_53
collect2.exe: error: ld returned 1 exit status
Makefile.Release:299: recipe for target 'release\Coin-qt.exe' failedmingw32-make: *** [release\Coin-qt.exe] Error 1

For i can see it seems a problem with the mgw47-mt thing 

Please help!

Ale

Hello,

Very nice post, congrats! Just one dumb question, sorry I'm new to Cryptocurrency...
After the creation of the new coin, how should you start injecting money to the network?
The starting coin ballance should start in an wallet and being transferred to other participants?
Would be possible having such thing as a "Central Bank" to issue money?
How should this could be accomplished?

Thanks
Q
 

There is a noob Altcoin project named Practice Coin. In the process of reviewing coin types, coin building services, guides and tutorials.
In the end will make and launch our own coin.
https://bitcointalksearch.org/topic/annpra-practice-coin-learn-by-doing-1850047
  Tearo

a coin that can be compiled in visual studio 2015 or C# pos coin

Satoshi Nakamoto had a magic wand
https://www.youtube.com/watch?v=VKRAY3t1L-o

This is very helpful, thank you! I was thinking of designing a coin with my friend. It will be tough to get it off the ground though.

But overall, very well put together guide

If you are stuck, then do everyone a favor and give up.