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The type initializer for 'Syncfusion.EJ2.PdfViewer.PdfiumNative' threw an exception.
On windows the program work perfectly, but not on a linux docker.
I use that DLL : Syncfusion.EJ2.PdfViewer.AspNet.Core.Linux
.net core 5.02
I gave write access in my docker to be sure.
And i always get that error 'Syncfusion.EJ2.PdfViewer.PdfiumNative' on that line : jsonResult = pdfviewer.Load(stream, jsonData);
Here is my docker file :
FROM mcr.microsoft.com/dotnet/aspnet:5.0-buster-slim AS base
WORKDIR /app
EXPOSE 80
FROM mcr.microsoft.com/dotnet/sdk:5.0-buster-slim AS build
WORKDIR /src
COPY ["ServerPdfViewer/ServerPdfViewer.csproj", "ServerPdfViewer/"]
RUN dotnet restore "ServerPdfViewer/ServerPdfViewer.csproj"
COPY . .
WORKDIR "/src/ServerPdfViewer"
RUN dotnet build "ServerPdfViewer.csproj" -c Release -o /app/build
FROM build AS publish
RUN dotnet publish "ServerPdfViewer.csproj" -c Release -o /app/publish
FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
Here is my function
public IActionResult Load([FromBody] Dictionary<string, string> jsonData)
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
//PdfRenderer.ReferencePath = _hostingEnvironment.ContentRootPath;
MemoryStream stream = new MemoryStream();
object jsonResult = new object();
if (jsonData != null && jsonData.ContainsKey("document"))
{
if (bool.Parse(jsonData["isFileName"]))
{
string documentPath = GetDocumentPath(jsonData["document"]);
if (!string.IsNullOrEmpty(documentPath))
{
byte[] bytes = System.IO.File.ReadAllBytes(documentPath);
stream = new MemoryStream(bytes);
}
else
{
string fileName = jsonData["document"].Split(new string[] { "://" }, StringSplitOptions.None)[0];
if (fileName == "http" || fileName == "https")
{
try
{
WebClient WebClient = new WebClient();
byte[] pdfDoc = WebClient.DownloadData(jsonData["document"]);
stream = new MemoryStream(pdfDoc);
}
catch (Exception ex)
{
var a = ex;
}
}
else
{
return this.Content(jsonData["document"] + " is not found");
}
}
}
else
{
byte[] bytes = Convert.FromBase64String(jsonData["document"]);
stream = new MemoryStream(bytes);
}
}
try
{
jsonResult = pdfviewer.Load(stream, jsonData);
}
catch (Exception ex)
{
var a = ex;
}
return Content(JsonConvert.SerializeObject(jsonResult));
}
I still have the same problem on my AWS Lamba.
Do you have any news regarding this problem ?
https://www.syncfusion.com/forums/151628/the-type-initializer-for-syncfusion-ej2-pdfviewer-pdfiumnative-threw-an-exception
Thanks,
Vasugi
Do you have any update ?
If you need more time or if I can be of any assistance please let me know.
Tuan
Once again, if you need any assistance I would be happy to try things on my side.
Tuan
Thanks again for your updates.
Would you share your current lambda directory you're trying to push ?
Thanks
I'm encountering the same problem. Did you adapt your docker to run on a Windows environment ?
Thanks,
Tuan
I've almost done it.
I've managed to create the API endpoint for /Load but I'm stuck on the /RenderPdfPages. The problem is that each call to those endpoint is handled by a different Lambda, so when I try to " pdfExportImage.GetPage(jsonObject) " I get the error "Document Reference pointer does not exist in the cache", which is normal because Lambda can't find the previously loaded PDF in memory.
My idea was to fetch the PDF from S3 when rendering the PDF but I would need an object key to do that. I was hoping that the uniqueId in the body of the /Load request corresponded to the name of the file but it's not, it's a random id as far as I can see.
Is there a way to either :
- Set the uniqueId when calling /Load
- Modify the body of the request when calling /RenderPdfPages
I can share my lambda if you wish to try it yourself.
Thanks,
Tuan
|
services.AddMemoryCache();
services.AddDistributedRedisCache(options =>
{
options.Configuration = Configuration.GetConnectionString("Redis");
}); |
|
PdfViewerController.cs
private IDistributedCache _cache;
public PdfViewerController(IHostingEnvironment hostingEnvironment, IDistributedCache cache)
{
_hostingEnvironment = hostingEnvironment;
_cache = cache;
} |
Hi there,
Evaluating PdfViewer for huge project.
We tried this solution but still facing the same issue when deployed to linux docker.
Here's our docker file. Let me know if I missed anything.
FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build-env
WORKDIR /var/local/app
# setup directory structure to work with VS project references
RUN mkdir /var/local/app/API
RUN mkdir /var/local/app/Shared
# Copy csproj and restore as distinct layers
# hiding project specific
# Copy everything else and build
# hiding project specific
RUN dotnet publish -c Release --self-contained false -o /var/local/app/out/content
# Set the emty directory as a mount point for K8 secrets containing TLS Certs
RUN mkdir /var/local/app/out/content/security
###################################################
### Build the final container
### https://hub.docker.com/_/microsoft-dotnet-aspnet
FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim
# https://www.syncfusion.com/forums/166222/pdf-viewers-service-is-throwing-an-exception-the-type-initializer-for-syncfusion-ej2
RUN ln -s /lib/x86_64-linux-gnu/libdl-2.24.so /lib/x86_64-linux-gnu/libdl.so
# install System.Drawing native dependencies https://www.syncfusion.com/forums/162767/sfpdfviewer-component-erreur-syncfusion-ej2-pdfviewer-pdfiumnative-threw-an-exception-on
RUN apt-get update && apt-get install -y --allow-unauthenticated libgdiplus libc6-dev libx11-dev xvfb libfontconfig wkhtmltopdf openssl libssl-dev
RUN ln -s libgdiplus.so gdiplus.dll
WORKDIR /var/local/app
COPY --from=build-env /var/local/app/out/content .
ENTRYPOINT ["dotnet", "5fkdjfctApi.dll"]
|
RUN ln -s /lib/x86_64-linux-gnu/libdl-2.24.so /lib/x86_64-linux-gnu/libdl.so
# install System.Drawing native dependencies
RUN apt-get update && apt-get install -y --allow-unauthenticated libgdiplus libc6-dev libx11-dev
RUN ln -s libgdiplus.so gdiplus.dll
|
- 17 Replies
- 4 Participants
- Marked answer
-
FR Frédéric
- Jan 31, 2021 04:44 AM UTC
- Dec 22, 2021 08:53 AM UTC
