How can I solve Error: object 'opencpu' not found - r

I tried to load the appdemo into opencpu and it gave me an error. How should I solve this error?
Steps to Reproduce:
1. git clone git clone https://github.com/rwebapps/appdemo.git
2. sudo -i R[enter image description here][1]
3. library(opencpu)
4. opencpu$browse("/library/appdemo/www")
picture of the error on my terminal

In OpenCPU 2.0 you need a different command to start the server:
ocpu_start_server()
Or to directly start the appdemo app
ocpu_start_app("rwebapps/appdemo")

Related

Install riscv spike simulator'; Failed to run dtc: No such file or directory Child dtb process failed

I try to install the riscv tool to my Ubuntu 18.04.4 LTS server.
Use the following git repo and follow its build procedure:
spike simulator
GNU tool
Installation (Newlib)
riscv pk
Issue spike pk hello, gives me
Failed to run dtc: No such file or directory
Child dtb process failed
I have already installed the device-tree-compiler through apt command.
And checked with which dtc, outputs /usr/bin/dtc
What might be the problem?
Any help would be appreciated.
I run those commands on a command-line interface, not capable to run any graphic user interface. Not sure if that causes this problem.
The spike simulator is my first attempt to execute riscv code, I am also welcome to other recommendations.
I figure it out by creating a symbolic link using ln -s $(which dtc) and the problem is solved.

Cloning Pintos with Ubuntu

I am trying to start doing the Pintos Stanford project on Ubuntu. I downloaded the tar file that the Stanford website provides but when I try and run
pintos -- run alarm-multiple
I get the following error:
Unrecognized character \x16; marked by <-- HERE after if ($<-- HERE near column 7 at /home/adambomb/src/pintos/src/utils/pintos line 911
I found on another stackoverflow post that I should pull from latest version of pintos:
git clone git://pintos-os.org/pintos-anon pintos
But doing this gets me an error:
Cloning into 'pintos'...
fatal: read error: Connection reset by peer
I'm not really sure where to go from here and could use some insight to fix either of these problems.
I don't really know where to go from here.
I ran into the same issues as you trying various guides on the internet (eg. this guide) and looking through StackOverflow. However, this youtube video helped me the most.
Steps below can be found here. I'm using Ubuntu 18.04.
Run sudo apt-get install qemu
Get latest pintos source code from pintos public git repository or download older version with this link
2a. Under heads, find master and click the tree hyperlink
2b. Click snapshot and download the .tar.gz file to your directory
Run tar -xvzf pintos-anon-master-{value}.tar.gz where {value} is the commit-id
Open /utils/pintos-gdb with vim and edit GDBMACROS variable to point to the full path for pintos directory
Open Makefile with vim and edit LOADLIBES variable name to LDLIBS
Compile utils directory by navigating to /src/utils and running make
Edit /src/threads/Make.vars (line 7): change bochs to qemu
Compile threads directory by navigating to /src/threads and running make
Edit /utils/pintos (line 103): replace bochs with qemu
Edit /utils/pintos (~line 257): replace kernel.bin with the full path to kernel.bin
Edit /utils/pintos (~line 621): replace qemu with qemu-system-x86_64
Edit /utils/Pintos.pm (line 362): replace loader.bin with the full path to loader.bin
Open ~/.bashrc and add export PATH=/home/.../pintos/src/utils:$PATH to the last line.
Reload terminal by running source ~/.bashrc
Run pintos with pintos run alarm-multiple

Error when creating MeteorJS project - can't get arch with uname -p?

When I run in my terminal “meteor create new_app”,
I get the following error:
d/Users/abc123/.meteor/packages/meteor-tool/.1.8.1.4gwv5w.33478++os.osx.x86_64+web.browser+web.browser.legacy+web.cordova/mt-os.osx.x86_64/dev_bundle/lib/node_modules/meteor-promise/promise_server.js:218
throw error;
^
Error: can’t get arch with uname -p?
at run (/tools/utils/archinfo.js:151:15)
at Object.host (/tools/utils/archinfo.js:161:11)
at ProjectContext.reset (/tools/project-context.js:94:45)
at new ProjectContext (/tools/project-context.js:60:8)
at Command.func (/tools/cli/commands.js:769:24)
at /tools/cli/main.js:1531:15
It then creates the project folder, but if I cd into the project folder and run “meteor” in the terminal to run the project, nothing runs and I get the an error about there being a missing release file. when I add the release file and re-run, I get the same error posted above.
I have tried reinstalling meteor, and I have it installed using the script from the official website.
Does anybody have any guidance that can help me? Thank you so much!

No Bundle URL Present

I am running 5.1.0 of react-native-firebase-starter (https://github.com/invertase/react-native-firebase-starter/blob/master/package.json)
I have triple checked that I have followed the Getting Started instructions (from the readme) exactly. However, when I run the project I get "No Bundle URL Present".
I have searched for this error elsewhere and seen rm -rf ios/build/; kill $(lsof -t -i:8081); as the answer. I've tried this, and variations, several times but I cannot get the project to run.
I fixed it by adding 127.0.0.1 localhost to my /etc/hosts file
This worked for me:
Open a terminal window
cd into YOUR_PROJECT/ios
Remove the build folder with rm -r build
Run react-native run-ios again
I know its an old question but in Future if someone face this issue i have found a work around to this problem.
after running "react-native run-ios" command
Run another command "npm start"
after running above command you will "Loading dependency graph" wait
for 2 or three seconds and you will see thisLoading dependency
graph, done.
now press cmd+R OR you may tap on reload on screen if problem not
solved do step 4, 2 to 3 times

meteor-jsdoc is not recognized as an internal or external command, operable program or batch file

I am trying to set up meteor-jsdoc on an existing meteor project according to the steps here:
https://www.npmjs.com/package/meteor-jsdoc
I am using windows and I run >npm install -g meteor-jsdoc , it is successfully
However when I try to run > meteor-jsdoc, it gives the error as in title.
I tried running the npm install both inside and outside the folder.
Anyone had the experience before? I am really stuck here.
Thanks!
Found the solution, re-installed git bash with unix tools option selected.

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