What can such an error in connecting via ADOConnection in a C ++ buildera project mean, how to fix it?

Question

Iron

there is a Microsoft Access database with the .accdc extension on the form there are components ADOConnection1 ADOTable and DataSourse requests fly in json format. but when compiling the program, an error occurs, what could be the problem?
Error here
[ilink32 Error] Error: Unresolved external '__fastcall TDataModule4::ADOConnection1AfterConnect(System::TObject *)' referenced from C:\USERS\ILIA\DESKTOP\MR.TROC\SERVER\WIN32\DEBUG\UNIT4.OBJ
[ilink32 Error] Error: Unable to perform link

Answer 1

1. NVMe is definitely worth taking. Regarding specific models, everything is well described in the topic https://forums.overclockers.ru/viewtopic.php?f=24&...
2. RAM - see from the list recommended for the motherboard ( www.gigabyte.ru/products/page /mb/b450_aorus_mrev_1... You have 4 slots and a maximum of 64 GB, i.e. it is better to take not 2x8, but 1x16 or 2x16, so that in the future you can easily increase it to the maximum.My opinion is that 16GB is now the minimum for development. - should suffice for the next couple of years
3. A standard cooler will suffice If you need silence or overclocking - look towards quiet or powerful analogues.

Answer 2

For myself, I would take Intel + Nvidia and not AMD + Radeon
1. Any non-NoName (it’s better to throw away 4 B-brands than pray for one A)
2. Enough and 1x8
3. Enough
4. Don’t spare money for a high-quality case, there will be no noise and the dust inside

Answer 3

1. For example, write speed on SSD/SATA3 = ±500 MB/s, and on SSD/NVMe = ±3500MB/s. On the other hand, do you really need a terabyte ssd? Pleasure is not cheap and it does not make much sense. You can take a regular screw for file storage, and 256 for a ssd system. It should come out a little cheaper with a minimal difference.
2. RAM at least 16
3. Enough if there are no special requirements for silence.

Answer 4

Would like more specific SSD and RAM options

Samsung 960pro / 970pro are both tops, but better than 970 the difference is 2k in total and the recording speed is faster.
Corsair Vengeance RGB [CMR16GX4M2C3000C15] 16 GB
Enough of the standard if you do not drive percents. But it will be noisy, maybe in loads I would take the OEM version and not the BOX (I have never taken a box in my whole life. Why the hell is this beggarly cooler?).
Well, what's the opinion here? good build. Toko vidyahu would like a gtx 1080ti and you can play safely on ultras, and even in 2K on ultras in 90% of games you can play then.

Answer 5

Would like more specific SSD and RAM options

Answer 6

RAM - take at least 16GB.
SSD - To save money, I would take less (256GB, for example), but I would take a huge HDD. On ssd there will be OS and software, on hdd - large non-critical files, such as videos, raw photos or torrents.
A huge low RPM cooler is relatively expensive, but it's great.

Answer 7

Judging by the error, the compiler cannot find some library. If this is ADOConnection1 - built-in, then climb into the project properties, if it is something third-party, then the compiler must manually specify the paths to it in the project properties.