am using Windows 11 and currently 2.0.0-rc-6 with no problem. I use the .zip method to install.
First attempt was from the Arduino Website. Down loaded rc-7 .zip, extracted to the folder. Noticed that neither the Board Manager or Library Manager function. Deleted all folders for rc-7. Tried the Windows Install method, same result. Again uninstalled rc-7. When opening rc-6, used the update prompt which repeated the Windows Installation with the same problem. Uninstalled rc-7 again. Checked in the FORUM. Tried the Nightly Build from Arduino with the same result. Uninstalled and tried Nightly Build from GitHub. Same result. Have uninstalled all rc-7 and hope there is a solution forthcoming!!
I'm going to ask you to post some additional information that might help us to identify the problem.
Please do this:
Start Windows "File Explorer".
Open the Arduino IDE installation folder.
(usually C:\Program Files\Arduino IDE or C:\Users\<user name>\AppData\Local\Programs\Arduino IDE).
In the folder listing of the Arduino IDE installation folder, hold the Shift key while clicking the right hand button on the mouse.
From the context menu, click "Open PowerShell window here".
PowerShell will now open with the current directory set to the Arduino IDE installation folder.
Type the following command:
& ".\Arduino IDE"
Press the Enter key.
Debug output should now be printed to the PowerShell window as the Arduino IDE starts (or fails to start).
Wait for the Arduino IDE to finish starting, or failing to start.
Switch back to the PowerShell window if the Arduino IDE window took the focus.
Right click on the title bar of the PowerShell window.
This will open a context menu.
Select Edit > Select All from the context menu.
This will select all the text in the PowerShell window.
Press Ctrl+C.
This will copy the contents of the PowerShell window to the clipboard.
Open a forum reply here by clicking the Reply button.
Click the </> icon on the post composer toolbar.
This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
Press Ctrl+V.
This will paste the output into the code block.
Move the cursor outside of the code block markup before you add any additional text to your reply.
Click the Reply button to post the output.
Please let me know if you have any questions or problems while following those instructions.
Please attach a .txt file containing the output in a reply here:
Open any text editor program.
Paste the copied output into the text editor.
Save the file in .txt format.
Open a forum reply here by clicking the Reply button.
Click the "Upload" icon on the post composer toolbar:
Select the .txt file that contains the output.
Click the Open button.
Click the Reply button to publish the post.
Alternatively, instead of using the "Upload" icon on the post composer toolbar as described in steps (5) - (7) above, you can simply drag and drop the .txt file onto the post composer field to attach it.
%20 is "percent encoding" for the space character. So what this tells me is that you have pasted this URL into your preferences twice, with a space separating the two. The problem is not the duplicate URLs, which are handled fine, but rather the fact that there are two URLs separated by a space. The preference takes a comma separated list of URLs. So it assumes those two URLs are actually one and tries to load it.
I'll provide instructions for how to fix this:
Select File > Preferences from the Arduino IDE menus.
Click the button on the right side of the "Additional Boards Manager URLs" field.
You will now see a list of Boards Manager URLs.
The "no Board Manager or Library Manager" problem should now be resolved.
I wanted to provide you with a solution ASAP, but I am also going to follow up on this with the Arduino IDE developers. Even though the URL is unusable, the Arduino IDE should clearly communicate about the problem to the user. It should probably also handle this non-fatal error gracefully by still retaining functionality (although of course it would not be possible for it to still manage the "SparkFun Apollo3 Boards" platform via Boards Manager without a valid URL for it). I'll add a link here to the formal report once I have submitted it.
I appreciate your follow up but am still unsuccessful. I have removed the unnecessary second SparkFun entry in the "Preference" of both the working rc-6 and a new installation of rc-7. txt copies attached. edited pref rc-6.txt (543 Bytes) edited pref rc-6.txt (543 Bytes)
I do not see a difference. The copy of rc-6 works properly. The new installation of rc-7 still has the Board Manager and Library Manager problem.
I have repeated you request for PowerShell Output and have uploaded a copy of the output from the working IDE file for rc-6.
Unlike the previous issue with the bad Boards Manager URL, this bug has already been fixed. If you try the nightly build, you will find that the "no Board Manager or Library Manager" problem no longer occurs.
Although the IDE can now handle your current environment just fine, I will mention that these "malformed custom board options" problems have been fixed in the "SparkFun SAMD Boards" and ESP8266 Arduino boards platforms long ago, but you are using very outdated versions of those boards platforms. Unless you have a specific reason for using the old versions, you might consider Using the Arduino IDE Boards Manager to install the latest versions.
If you are doing that, you should be aware that the primary SparkFun Boards Manager URL was changed recently, so you will want to update the URL in your "Additional Boards Manager URLs" preference to the one specified by SparkFun here:
Sorry for the late response. Yesterday was a family day!
I have loaded the nightly build from GitHub. No successful!! Thanks!
One odd thing! I went back to rc-6 before going to GitHub and looked at all boards in the Board Manager that were Installed? None appeared to need updating. All showed them to be the latest version??
Not a big thing! Happy rc-7 is working. It is a much bigger package than rc-6. Hope I have the ability to program the AtTiny 85's. In the past we were unable to UPLOAD without a port declared. Had to use the Upload with Programmer option in the File menu.
Will try it soon!
Thanks! I will probably not be back to detailed software until this fall. We are boaters and mostly live on our boat all summer. In the fall and winter I brew beer for the year. I brew about 250 gallons over the winter and keg it for use! Only $0.25 a glass. I built a 12 gallon brewing system about 6 years ago and started to automate last fall with some success using an Uno. Like all projects you love, it just keeps growing as I get more ideas to build on past things that work!!! Moving on from an I2C 20x4 lcd to a tft this fall with limited graphics. Was using the atTiny as a temperature controller to unload the Uno from some tasks. Have to redesign the interface board as it is currently an Uno shield format. Need to redesign the external stuff to work on 3.3vdc and will redesign around an RP-Pico or ESP-32. I have some ideas for remote data logging. See it just keep's growing! (Smile)!