----
import std.random

void main() {}
---

results in:

Error 42: Symbol Undefined
_D4core6memory2GC6qallocFkkZS4core6memory8BLkInfo_
Error 42: Symbol Undefined _D4core6memory2GC6extendFPvkkZk
Error 42: Symbol Undefined _D4core5bitop3bsrFNaNbkZi
--- errorlevel 3


What is wrong?

You're missing the semi-colon after import std.random.


import std.random;

void main() {}

On Friday, 31 August 2012 at 22:44:11 UTC, ixid wrote:
> You're missing the semi-colon after import std.random.

Sorry, typo. Semicolon is included in the file. DMD 2.060.

On Saturday, September 01, 2012 00:40:25 deed wrote:
> ----
> import std.random
> 
> void main() {}
> ---
> 
> results in:
> 
> Error 42: Symbol Undefined
> _D4core6memory2GC6qallocFkkZS4core6memory8BLkInfo_
> Error 42: Symbol Undefined _D4core6memory2GC6extendFPvkkZk
> Error 42: Symbol Undefined _D4core5bitop3bsrFNaNbkZi
> --- errorlevel 3
> 
> 
> What is wrong?

You druntime installation is bad due to some cruft left from a previous install (the installer obviously needs some work). If you used an installer, then uninstall dmd, make sure that it's completely removed, and then reinstall it.

If you installed it manually, then make sure that you blow away druntime's import directory and then restore it with the current version of those files.

- Jonathan M Davis

> You druntime installation is bad due to some cruft left from a previous
> install (the installer obviously needs some work). If you used an installer,
> then uninstall dmd, make sure that it's completely removed, and then reinstall
> it.
>
> If you installed it manually, then make sure that you blow away druntime's
> import directory and then restore it with the current version of those files.
>
> - Jonathan M Davis


Thanks. Had not tried that and it sounds as a probable reason.

Reinstallation solved the case. Thanks for your prompt reply.

On Friday, 31 August 2012 at 22:52:13 UTC, Jonathan M Davis wrote:
> On Saturday, September 01, 2012 00:40:25 deed wrote:
>> ----
>> import std.random
>> 
>> void main() {}
>> ---
>> 
>> results in:
>> 
>> Error 42: Symbol Undefined
>> _D4core6memory2GC6qallocFkkZS4core6memory8BLkInfo_
>> Error 42: Symbol Undefined _D4core6memory2GC6extendFPvkkZk
>> Error 42: Symbol Undefined _D4core5bitop3bsrFNaNbkZi
>> --- errorlevel 3
>> 
>> 
>> What is wrong?
>
> You druntime installation is bad due to some cruft left from a previous
> install (the installer obviously needs some work). If you used an installer,
> then uninstall dmd, make sure that it's completely removed, and then reinstall
> it.
>
> If you installed it manually, then make sure that you blow away druntime's
> import directory and then restore it with the current version of those files.
>
> - Jonathan M Davis

I am having this issue now. What else would I need to do other than uninstall and reinstall D on Windows to get it working? I tried that and it's not fixed it. Importing std.random in my own module which is in the project directory fails to find the symbol while importing std.algorithm works fine. Importing std.random in main.d works fine as well.

Error	1	Error 42: Symbol Undefined _D7objects12__ModuleInfoZ		

On Monday, 5 January 2015 at 15:59:17 UTC, ixid wrote:
> On Friday, 31 August 2012 at 22:52:13 UTC, Jonathan M Davis wrote:
>> On Saturday, September 01, 2012 00:40:25 deed wrote:
>>> ----
>>> import std.random
>>> 
>>> void main() {}
>>> ---
>>> 
>>> results in:
>>> 
>>> Error 42: Symbol Undefined
>>> _D4core6memory2GC6qallocFkkZS4core6memory8BLkInfo_
>>> Error 42: Symbol Undefined _D4core6memory2GC6extendFPvkkZk
>>> Error 42: Symbol Undefined _D4core5bitop3bsrFNaNbkZi
>>> --- errorlevel 3
>>> 
>>> 
>>> What is wrong?
>>
>> You druntime installation is bad due to some cruft left from a previous
>> install (the installer obviously needs some work). If you used an installer,
>> then uninstall dmd, make sure that it's completely removed, and then reinstall
>> it.
>>
>> If you installed it manually, then make sure that you blow away druntime's
>> import directory and then restore it with the current version of those files.
>>
>> - Jonathan M Davis
>
> I am having this issue now. What else would I need to do other than uninstall and reinstall D on Windows to get it working? I tried that and it's not fixed it. Importing std.random in my own module which is in the project directory fails to find the symbol while importing std.algorithm works fine. Importing std.random in main.d works fine as well.
>
> Error	1	Error 42: Symbol Undefined _D7objects12__ModuleInfoZ		

How do you build your program? Dmd, rdmd, Dub, etc.?

On Tuesday, 6 January 2015 at 18:37:25 UTC, Rene Zwanenburg wrote:
> On Monday, 5 January 2015 at 15:59:17 UTC, ixid wrote:
>> On Friday, 31 August 2012 at 22:52:13 UTC, Jonathan M Davis wrote:
>>> On Saturday, September 01, 2012 00:40:25 deed wrote:
>>>> ----
>>>> import std.random
>>>> 
>>>> void main() {}
>>>> ---
>>>> 
>>>> results in:
>>>> 
>>>> Error 42: Symbol Undefined
>>>> _D4core6memory2GC6qallocFkkZS4core6memory8BLkInfo_
>>>> Error 42: Symbol Undefined _D4core6memory2GC6extendFPvkkZk
>>>> Error 42: Symbol Undefined _D4core5bitop3bsrFNaNbkZi
>>>> --- errorlevel 3
>>>> 
>>>> 
>>>> What is wrong?
>>>
>>> You druntime installation is bad due to some cruft left from a previous
>>> install (the installer obviously needs some work). If you used an installer,
>>> then uninstall dmd, make sure that it's completely removed, and then reinstall
>>> it.
>>>
>>> If you installed it manually, then make sure that you blow away druntime's
>>> import directory and then restore it with the current version of those files.
>>>
>>> - Jonathan M Davis
>>
>> I am having this issue now. What else would I need to do other than uninstall and reinstall D on Windows to get it working? I tried that and it's not fixed it. Importing std.random in my own module which is in the project directory fails to find the symbol while importing std.algorithm works fine. Importing std.random in main.d works fine as well.
>>
>> Error	1	Error 42: Symbol Undefined _D7objects12__ModuleInfoZ		
>
> How do you build your program? Dmd, rdmd, Dub, etc.?

Dmd latest non-beta, with the latest VisualD. Debug build. Debug build and no additional or non default settings.

On Tuesday, 6 January 2015 at 20:26:25 UTC, ixid wrote:
> Dmd latest non-beta, with the latest VisualD. Debug build. Debug build and no additional or non default settings.

Hmm..

Did you verify that the D installation directory was completely empty after uninstalling?

Does VisualD have some kind of verbose mode to show the exact command used to invoke DMD?

What happens if you run rdmd on your main file?