Solution:
You use Tools > convert Delphi unit into Lazarus unit in Lazarus IDE.
However, Lazarus IDE forgot to insert the following directive to your unit source code:
initialization
{$i unit.lrs}
2) When you get the following error message: identifier LazarusResource not found
Solution:
Add LResource unit into uses clause in your unit source.
3) When you get the following error:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgTUPYBYczQBF_jl35_EapV-SH6HEE9W2GvGAFr3q60nL7h9eNHz8bF2tM3C4YgztEPCuWGvEGH44hHSFXG7_azm-J1s7gVPvxQne7eIf2ekPBHX2ylvXE7UMqtVNHGkX9itDh-Dw/s320/errors.png)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRL_heVVhfo7vk9ejn6khupclvmW4halr6IH9SBwkMKYuEqOaAjUGJZ9XoY8sSRkZIysPuAx2dM_HIFG_DL_57GEeiNamsEyn-aGfegWJ-3KNw3wVNg3jnaRVXDIFnpQCpWlxqtw/s320/errors1.png)
Solution:
Add Interfaces unit into uses clause in your unit source code.