After reading article found at https://www.dartlang.org/articles/web-ui/tools.html, I tried to compile my application by following it.
My application stored in web/app.html can be successfully compiled to Javascript under DartEditor by using "Run as Javascript" command.
When I try to use following command lines to perform a compilation for deploying in production, I encounter an issue on uncopied package part file.
$ dart --package-root=packages/ packages/web_ui/dwc.dart --out /tmp/dart/ --no-rewrite-urls web/app.html
$ ls lib/app/
model_browser.dart model_server.dart
$ ls lib/app/src/model/
model_browser.dart model_server.dart model_shared.dart
$ cd /tmp/dart
$ dart2js -v app.html_bootstrap.dart --package-root=packages/ -oapp.html_bootstrap.dart.js
...
info: scanning library file:///private/tmp/dart/_from_packages/bm/model_browser.dart
_from_packages/app/model_browser.dart:12:1: Error: Cannot read "_from_packages/app/src/model/model_shared.dart" (OS Error: No such file or directory, errno = 2).
part 'src/model/model_shared.dart';
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
info: Error: compiler cancelled: Error: Cannot read "_from_packages/app/src/model/model_shared.dart" (OS Error: No such file or directory, errno = 2).
...
$ ls _from_packages/app/
model_browser.dart model_browser.dart.map
$ ls _from_packages/app/src/model/
model_browser.dart model_browser.dart.map
In fact, "model_shared.dart" file isn't copied into /tmp/dart/_from_packages/app/src/model/model_shared.dart.
The content of model_browser.dart is following
library model;
import 'dart:json' as json;
import 'package:bm/i18n.dart' as i18n;
import 'package:logging/logging.dart';
import 'package:web_ui/web_ui.dart';
part 'src/model/model_shared.dart';
part 'src/model/model_browser.dart';
DartEditor can launch my application as Javascript. What is the right command line for launching dart2js in order to take into account the "part" statements of my "model" library ?
The issue is linked to "--no-rewrite-urls" option and the absolute path in --out option.
If I remove the "--no-rewrite-urls" option and put a relative path in --out option, the dart2js compilation is successfully done.
Related
On nixos, I am trying to compile the hello world example listed in the agda documentation.
In my working directory, I have the following:
The hello-world agda program, hello-world.agda:
module hello-world where
open import IO
main = run (putStrLn "Hello, World!")
A nix shell file, shell.nix:
{ pkgs ? import <nixpkgs> { } }:
with pkgs;
mkShell {
buildInputs = [
(agda.withPackages (ps: [
ps.standard-library
]))
];
}
To enter a shell with the standard-library dependency available, I ran $ nix-shell shell.nix.
Then, trying to compile the program, I ran $ agda --compile hello-world.agda, as advised by the linked agda hello world documentation.
But that gave me the following error:
$ agda --compile hello-world.agda
Checking hello-world (/home/matthew/backup/projects/agda-math/hello-world.agda).
/home/matthew/backup/projects/agda-math/hello-world.agda:3,1-15
Failed to find source of module IO in any of the following
locations:
/home/matthew/backup/projects/agda-math/IO.agda
/home/matthew/backup/projects/agda-math/IO.lagda
/nix/store/7pg293b76ppv2rw2saf5lcbckn6kdy7z-Agda-2.6.2.2-data/share/ghc-9.0.2/x86_64-linux-ghc-9.0.2/Agda-2.6.2.2/lib/prim/IO.agda
/nix/store/7pg293b76ppv2rw2saf5lcbckn6kdy7z-Agda-2.6.2.2-data/share/ghc-9.0.2/x86_64-linux-ghc-9.0.2/Agda-2.6.2.2/lib/prim/IO.lagda
when scope checking the declaration
open import IO
It seems it should be finding the standard library, since I'm running from the nix-shell with agda's standard-library specified, but that error on open import IO looks like the standard library is somehow still not found.
Any idea what the problem is likely to be?
Or what else I can do to get agda working on nixos?
You might need to create a defaults file in AGDA_DIR (which typically refers to ~/.agda/ unless overwritten through environment variable) with the libraries you want to make available to your program:
echo standard-library >> ~/.agda/defaults
which should make the compiler automatically load the standard library.
Alternatively, you can pass them in on the command-line:
agda -l standard-library
or use a project-local .agda-lib file as follows:
name: my-libary
depend: standard-library
include: -- Optionally specify include paths
You should not need to specify the include paths with Nix, but in case you do, you can use the -i command line flag or add the path to the standard-library.agda-lib file in ~/.agda/libraries.
I am trying to compile Opencv on Ubuntu 18.04. I installed many dependencies packages but when I run make I get the error:
grfmt_jpeg2000.cpp:59:10: fatal error: jasper/jasper.h: No such file or directory
#include <jasper/jasper.h>
^~~~~~~~~~~~~~~~~
compilation terminated.
I had already jasper installed and installed libjasperreports-java. However the file jasper.h cannot still be found in my system. Is there any library I can install with apt install to get that file? Or am I missing any other library?
EDIT 1
I tried also downloading the opencv_contrib to install extra moduels of openCV but first of all jaspar is not present and secondly setting the build with
cmake -D CMAKE_INSTALL_PREFIX=./ -D CMAKE_BUILD_TYPE=Debug -D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules ../openCV
returns the error:
Make Error at cmake/OpenCVModule.cmake:352 (message):
Duplicated modules NAMES has been found
while CMakeError.log contains many errors of the type:
Build output check failed:
Regex: 'command line option .* is valid for .* but not for C\+\+'
Output line: 'cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++'
I'm cross-compiling the Dart runtime using the instruction here.
I've installed all the dependencies as specified. I've also cloned the git repository with the necessary tool chain.
I'm running the runtime compilation with this command:
./tools/build.py -m release -a arm --toolchain=../tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf runtime
The compilation starts with no problem then it stops with this error:
LINK(target) out/ReleaseXARM/libdart_dependency_helper.target
CXX(host) out/ReleaseXARM/obj.host/libdart_lib_withcore/runtime/vm/bootstrap.o
In file included from /usr/include/sys/socket.h:38:0,
from /usr/include/netinet/in.h:23,
from /usr/include/arpa/inet.h:22,
from runtime/platform/globals.h:56,
from runtime/platform/assert.h:16,
from runtime/vm/allocation.h:8,
from runtime/vm/bootstrap.h:9,
from runtime/vm/bootstrap.cc:5:
/usr/include/bits/socket.h:345:24: fatal error: asm/socket.h: No such file or directory
#include <asm/socket.h>
^
compilation terminated.
CXX(host) out/ReleaseXARM/obj.host/libdart_lib_withcore/gen/async_gen.o
In file included from /usr/include/sys/socket.h:38:0,
from /usr/include/netinet/in.h:23,
from /usr/include/arpa/inet.h:22,
from runtime/platform/globals.h:56,
from runtime/platform/assert.h:16,
from runtime/vm/allocation.h:8,
from runtime/vm/bootstrap.h:9,
from out/ReleaseXARM/obj/gen/async_gen.cc:5:
/usr/include/bits/socket.h:345:24: fatal error: asm/socket.h: No such file or directory
#include <asm/socket.h>
^
compilation terminated.
runtime/libdart_lib_withcore.host.mk:978: recipe for target 'out/ReleaseXARM/obj.host/libdart_lib_withcore/runtime/vm/bootstrap.o' failed
make: *** [out/ReleaseXARM/obj.host/libdart_lib_withcore/runtime/vm/bootstrap.o] Error 1
make: *** Waiting for unfinished jobs....
runtime/libdart_lib_withcore.host.mk:986: recipe for target 'out/ReleaseXARM/obj.host/libdart_lib_withcore/gen/async_gen.o' failed
make: *** [out/ReleaseXARM/obj.host/libdart_lib_withcore/gen/async_gen.o] Error 1
BUILD FAILED
Am I missing any dependency or package?
I hit the same problem. On my ubuntu 14.04 system /usr/include/asm didn't exist. It was called asm-generic instead. I sym-linked it and the build was able to continue.
cd /usr/include
sudo ln -s asm-generic/ asm
The build was able to continue after that.
This is probably because you're trying to build an application without some of the include paths correctly set, for example using a 32-bit gcc on a 64-bit platform.
To resolve:
sudo apt-get install gcc-multilib
I'm not sure why this happens, but sometimes /usr/include/asm gets deleted. My teammates who looked at their Ubuntu x86-64 workstations found that the asm symlink was:
0 lrwxrwxrwx 1 root root 20 May 22 2013 /usr/include/asm -> x86_64-linux-gnu/asm
And the command to recreate it is:
$ cd /usr/include
$ sudo ln -s x86_64-linux-gnu/asm asm
The files in /usr/include/asm-generic are sometimes, but not always, equivalent to the files in the x86-64 specific directory; so it's difficult to recommend symlinking it as a workaround.
Hi I am using gcov (GCC) 4.1.2 20080704 (Red Hat 4.1.2-51)
When I run gcov I am getting errors like "cannot open graph file". (My gcno and gcda file are created with name as abc.pic.gcda and abc.pic.gcno). But when I rename these files by removing "pic" (abc.gcda and abc.gcno) gcov is working fine. My question is: how to make gcov to read the files which are named like abc.pic.gcda and abc.pic.gcno?
Looks like you have file like abc.pic.cpp
and when you compile it
$ g++ --coverage abc.pic.cpp
$ ls
abc.pic.cpp abc.pic.gcno a.out
File abc.pic.gcno is created as you see. Next run binary
$ ./a.out
$ ls
abc.pic.cpp abc.pic.gcda abc.pic.gcno a.out
And run gcov:
$ gcov abc.pic
abc.gcno:cannot open graph file
$ gcov abc
abc.gcno:cannot open graph file
As you can see there is an error. To make it working you should provide full filename like
$ gcov abc.pic.cpp
File 'abc.pic.cpp'
Lines executed:100.00% of 6
abc.pic.cpp:creating 'abc.pic.cpp.gcov'
After upgrading to Xcode 4.3.2. I'm getting a metric ton of build errors.
A whole line of them are error code 255
gcc-4.2: error trying to exec '/usr/bin/arm-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
Command /usr/bin/gcc-4.2 failed with exit code 255
I noticed that there is no /usr/bin/arm-apple-darwin11-gcc-4.2.1 file on my machine. Could this be the source of the problem?
What's the output of this command?
$ printenv | grep "CC="
It might be honoring your C Compiler (CC) selection. I was getting similar errors (through cocoapods) and doing an
$ export CC=
fixed it for me.