I have been messing around with IronScheme and I am intrigued by it. I saw this post on creating WinForms in IronScheme, but any time I try to do reference a DLL like this:
(clr-reference System)
(clr-reference System.Data)
(clr-reference System.Windows.Forms)
etc...
I get this error:
Unhandled exception durring evaluation:
&who: "clr-reference"
&message: "Assembly not found"
&syntax:
form: ( <the assembly> )
subform: #f
I call (import (rnrs) (ironscheme clr)) to begin with. Is there something else I have to do?
This was a bug that recently crept in :(
It has been fixed in the RC5 release.
Sorry for the inconvenience.
Cheers
leppie
Related
I tried code found in Google but nothing works and in most cases it doesn't even compile (missing units, undeclared data types etc).
I finally found something that looks complete but shows "The handle is invalid" error:
http://rsdn.org/article/delphi/SMART.xml
You can download the file from here:
http://rsdn.org/article/delphi/smart/smart.zip
The problem is with function function OpenSMART(DrvNum:Byte): THandle;
hSMARTIOCTL:=CreateFile(PChar('\\.\PhysicalDrive'+inttostr(DrvNum)),GENERIC_READ or GENERIC_WRITE,FILE_SHARE_READ or FILE_SHARE_WRITE,nil,OPEN_EXISTING,0,0);
result:= hSMARTIOCTL;
How can I fix it or where can I find working example?
I use Delphi 7 Pro and Delphi 10.3.
OK, it needs to be run as admin. Then it just works.
Zerobrane version v1.90
This error is caused after I put the following code into user preference:
styles.indicator.fncall = {fg = {-110,0,0}} --I got this in documentation page of zerobrane
I tried to reinstall zerobrane(both portable version and .exe verison) but the problem is still here.
Screenshot of the error message:
{-110,0,0}
You're passing a negative value as the red value; there's no way that could work (What would it even do?)
We use a Delphi 10 programme that reads in an Access database. I do not deeply understand how it does it, except that I believe it uses units called DAO.pas and DAO_TLB.pas.
I recently upgraded from Office 2007 to Office 2016, and since then the Delphi programme is unable to read from the database; it gives the error:
Project MyProj.exe raised exception class EOleSysError with message 'Class not registered'.
I have tried to search to find how to fix this but am struggling because I don't really understand what's going on under the hood. I tried to install the Access 2016 type library, but that didn't seem to make any difference.
Extremely grateful for any help.
Thanks,
Tom
EDIT: DAO.pas is here. DAO_TLB.pas is where the error is triggered; the function which errors is:
class function CoDBEngine.Create: _DBEngine;
begin
Result := CreateComObject(CLASS_DBEngine) as _DBEngine;
end;
Where CLASS_DBEngine is a constant declared as:
CLASS_DBEngine: TGUID = '{CD7791B9-43FD-42C5-AE42-8DD2811F0419}';
I have also just noticed that, when the error occurs, if I click continue rather than break, a new error appears, saying:
Class not registered, ClassID: {CD7791B9-43FD-42C5-AE42-8DD2811F0419}
i.e. the ClassID is the CLASS_DBEngine constant.
I've noticed that calling hh_client is not always returning correct result. For example: I have following pieces of code:
backend\ConvertMessage.hh:
<?hh // strict
namespace ApiBackend\ConvertMessage {
enum Status: int {
success = 0;
// ... error codes
};
// ... some other classes
};
other place in project:
throw new \SoapFault(
'Server',
\ApiBackend\ConvertMessage\Status::getNames()[$result->status]
);
Sometimes, after doing some changes in project I get following error message: Could not find static method getNames in type ApiBackend\ConvertMessage\Status (Typing[4090])
When I remove a semicolon after one of closing curly brackets, hh_client stops displaying error. But when I insert semicolon back on its place, typechecker still gives me No errors! message.
This is not the only file that causes this problem - it happens to all enums.
It seems to me that it is problem with some cache of either hh_client or hh_server.
Thanks in advance for helping me with solving this problem (and sorry if my english is not too good).
You are probably using an outdated version of HHVM. This problem sounds an awful lot like this race condition, which was fixed in HHVM 3.5.0 and newer (and was backported into the 3.3.3 LTS release). Notably, 3.4.x still had the bug.
What version of HHVM are you using?
A few month a go i wrote a program, now when i try to compile it i receive this error :
[DCC Fatal Error] PVCM.dpr(7): F1026
File not found: 'dxGDIPlusClasses.dcu'
I don't know which component I've used .
That is a Devexpress component for GDI+. Devexpress units invariably have cx or dx prefixes.
It sounds like a DevExpress component.
I just encountered this problem right now !!!
Go to the unit that generates the error. Look at the top of its source code.
You will find under Uses a unit called: dxGDIPlusClasses. Remove it and you should be fine.
Hint: Next time when you remove a set of components. You have to update the USES block in your previous projects or at least, give'em a double check.